https://status.dal.ca/ RSS feed of the Dalhousie Status Page updates. en-ca Wed, 26 Mar 2025 12:05:08 America/Halifax Copyright 2017 Dalhousie University. https://status.dal.ca/rss.php https://status.dal.ca/service.php?Service=37 2025-03-10 15:50:11 CHANGE CONTROL NOTICE

Type Of Work: Maintenance

Customer: Dalhousie

Change Control ID : 1972773

Start Date (yyyy-mm-dd): 2025-04-16

End Date (yyyy-mm-dd): 2025-04-16

Location Of Work: Halifax, NS

Reason For Work: Software Upgrade

Release Window (24 hr format): 00:01 - 06:00 Atlantic

Affected Circuits:
00144524 - DAL MS Teams - 6080 Young Street, Halifax, NS
00144384 - DAL MS Teams - 6080 Young Street, Halifax, NS
00144385 - DAL MS Teams - 6080 Young Street, Halifax, NS
00144386 - DAL MS Teams - 6080 Young Street, Halifax, NS

Service Interruption Duration: 6 hours

Service Impact:
Your services will be impacted while we do planned software upgrade. https://status.dal.ca/service.php?Service=36 2025-03-10 15:51:35 CHANGE CONTROL NOTICE

Type Of Work: Maintenance

Customer: ACORN NS

Change Control ID : 1972773

Start Date (yyyy-mm-dd): 2025-04-16
End Date (yyyy-mm-dd): 2025-04-16

Location Of Work: Halifax, NS

Reason For Work: Software Upgrade

Release Window (24 hr format): 00:01 - 06:00 Atlantic

Affected Circuits:
00144397 - acorn-ytwr-1 - 6080 Young Street, Halifax, NS
00117119 - Management and monitoring for ACORN - 6080 Young Street, Halifax, NS

Service Interruption Duration: 6 hours

Service Impact:
Your services will be impacted while we do planned software upgrade. https://status.dal.ca/service.php?Service=36 2025-03-18 10:51:53 Eastlink New Change Control Notice


Type Of Work: Project

Customer: ACORN NS

Change Control ID : 1981414

Start Date (yyyy-mm-dd): 2025-04-11

End Date (yyyy-mm-dd): 2025-04-11

Country: Canada

Location Of Work: Halifax - NS

Reason For Work: Engineering Project

Release Window (24 hr format): 04:00 - 06:00 Atlantic

Affected Circuits:
00154284 - 100G DAL/ACORN - 233 Sambro Creek Rd, Sambro Creek, NS <> 84 Chain Lake Dr, Halifax, NS

Service Interruption Duration: less than 1 hour

Service Impact:
Your services will be impacted while we perform Core Transport maintenance https://status.dal.ca/service.php?Service=36 2025-03-20 15:39:18 Eastlink New Change Control Notice


Type Of Work: Maintenance

Customer: Canary NOC

Change Control ID : 1977890

Start Date (yyyy-mm-dd): 2025-04-10

End Date (yyyy-mm-dd): 2025-04-10

Country: Canada

Location Of Work: South Branch - NL

Reason For Work: Damaged Fiber Cables

Release Window (24 hr format): 00:01 - 06:00 Newfoundland

Affected Circuits:
00144649 - 10G Canarie Charlottetown to St Johns - UPEI Vet

Service Interruption Duration: less than 1 hour

Service Impact:
Your services will be impacted while we perform repairs to Damaged Fiber Cables https://status.dal.ca/service.php?Service=36 2025-03-20 14:09:03 Eastlink New Change Control Notice


Type Of Work: Maintenance

Customer: Canary NOC

Change Control ID : 1977884

Start Date (yyyy-mm-dd): 2025-04-09

End Date (yyyy-mm-dd): 2025-04-09

Country: Canada

Location Of Work: Stephenville - NL

Reason For Work: Damaged Fiber Cables

Release Window (24 hr format): 00:01 - 06:00 Newfoundland

Affected Circuits:
00144649 - 10G Canarie Charlottetown to St Johns - UPEI Vet

Service Interruption Duration: less than 1 hour

Service Impact:
Your services will be impacted while we perform repairs to Damaged Fiber Cables https://status.dal.ca/service.php?Service=6 2025-03-25 11:56:21 EXCHANGE NOTICE
Some users are receiving a misleading error when replying to or forwarding email through Outlook on the web
Service Degradation

More info: The error is misleading and doesn't prevent users from replying to or forwarding email through Outlook on the web.
Affected users are seeing the following error message:

"This message can't be saved right now. Please try again later."

Current status: The service provider's additional analysis into the aforementioned error has helped us isolate a code regression that was introduced by an update to help improve service performance. They highly suspect this regression is producing errors for users when replying to or forwarding email through Outlook on the web. They're deploying a fix to address the isolated code regression and have post deployment testing scheduled with affected users to help us confirm if impact has been remediated. https://status.dal.ca/service.php?Service=38 2025-03-25 10:24:02 M365 NOTICE
Some users may be unable to search or see recommendations in multiple M365 services
Service Restored

More info: Impacted services included but weren't limited to:
- Outlook on the web and desktop client
- Teams
- OneDrive for Business
- SharePoint Online
Final status: The service provider has confirmed through their deployment telemetry that the fix has reached all remaining affected users and the impact is remediated.
Start time: Monday, March 10, 2025, at 4:00 AM AST
End time: Friday, March 21, 2025, at 2:00 PM AST https://status.dal.ca/service.php?Service=6 2025-03-25 10:17:12 EXCHANGE NOTICE
Some users may encounter Non-Delivery Report (NDR) failures when sending or receiving email messages
Service Restored

More info: Users may have received an NDR containing an error stating "554 5.6.0 Corrupt message content".
Additionally, users may have intermittently received calendar invite email messages as a plain text message containing winmail.dat attachments.
Users may have been able to send affected messages by attempting to resend.
Final status: The service provider has completed their work to replay affected email messages and confirmed through service telemetry that NDR failure rates have returned to pre-incident thresholds; the service is maintaining a 99.99 percent success rate.
Start time: Sunday, March 9, 2025, at 8:07 PM AST
End time: Monday, March 24, 2025, at 3:06 PM AST https://status.dal.ca/service.php?Service=21 2025-03-25 08:46:25 Resolved:

1) Users may have been unable to search or see recommendations in myDal/SharePoint or OneDrive. https://status.dal.ca/service.php?Service=21 2025-03-24 15:54:22 Active:

1) Users may be unable to search or see recommendations in myDal/SharePoint or OneDrive.

Resolved:

1) Users' myDal/SharePoint column filter is not working as expected. When filling out the list/library column filter text box after typing the first letter the first matching term automatically auto-fills, requiring the users to delete the auto-fill if they want to select another term. It also affects Managed Metadata/Taxonomy columns. https://status.dal.ca/service.php?Service=39 2025-03-24 15:06:38 Status
Service Degradation

Impacted services
Microsoft Teams

Title: Users are experiencing failures when attempting to join channel meetings in Microsoft Teams

User impact: Users are experiencing failures when attempting to join channel meetings.

More info: Impact is specific to users on the desktop client or web app that are joining channel meetings from the new calendar experience, or users being nudged into these channel meetings.
Users aren't seeing an error, the action simply fails.
While we're working to remediate impact, affected users can still join channel meetings using the classic Teams calendar or the Teams mobile apps.
Current status: Our monitoring has identified an increase in join failures for channel meetings in Microsoft Teams. We've reviewed recent service updates and identified that a code regression is resulting in impact. We're in the process of validating a fix to remediate this issue.
Scope of impact: Your organization is affected by this event, and any user attempting to join Microsoft Teams channel meetings using the new calendar experience or nudge from the Microsoft Teams desktop and web clients is impacted.
Start time: Wednesday, March 5, 2025, at 12:00 PM UTC
Root cause: A recent update contains a code regression, resulting in impact.
Next update by: Thursday, March 20, 2025, at 9:00 PM UTC https://status.dal.ca/service.php?Service=39 2025-03-24 15:14:23 TEAMS NOTICE
Users may be unable to place calls or join meetings in Teams web client.
Service Restored

Following the service provider's extended service monitoring, their internal service telemetry has verified that users restarting their Teams clients has successfully remediated the impact.

Start time: Wednesday, March 19, 2025, at 2:02 PM AST
End time: Friday, March 21, 2025, at 8:40 PM AST https://status.dal.ca/service.php?Service=39 2025-03-24 15:12:56 TEAMS NOTICE
Users may be unable to place calls or join meetings in Teams web client.
Service degradation

More info: As a workaround, affected users can restart their browser and log back in to resolve the issue.
Current status: The service provider suspects a recent change is resulting in the impact, and they're reviewing their options to determine the best path towards mitigation. https://status.dal.ca/service.php?Service=6 2025-03-24 09:45:49 EXCHANGE NOTICE
Some users' Exchange Online email messages may be unexpectedly quarantined
Service Restored

Final status: The service provider has manually reallocated the remainder of the affected messages and confirmed that this issue is resolved.
Scope of impact: Impact was specific to some users who were served through the affected infrastructure.
Start time: Thursday, March 20, 2025, at 7:40 PM AST
End time: Friday, March 21, 2025, at 5:35 PM AST https://status.dal.ca/service.php?Service=17 2025-03-24 08:55:21 Killam 3rd floor closed for power renovation https://status.dal.ca/service.php?Service=9 2025-03-24 08:54:55 Killam 3rd floor closed for power renovation https://status.dal.ca/service.php?Service=43 2025-03-24 08:29:41 Note: Microsoft reported and resolved a recent issue where users may have experienced intermittent failures running Power Automate flows or playing Power App apps that use the Office 365 Outlook connector. Users may wish to check their flow or app run history for further details. https://status.dal.ca/service.php?Service=37 2025-03-18 10:48:37 Ticket ID: 21058 (Maintenance - Scheduled - Medium)
Start Date: Mar 21, 2025 12:00 AM EST
End Date: Mar 21, 2025 07:00 AM EST
Cause: Upgrade - Software

Service Outage Details
During this time, service interruptions may occur. Active PTT sessions may experience drops, new sessions can be initiated after 30 seconds.

Impacted Services
Push to Talk

Impacted Locations / Sites
Canada https://status.dal.ca/service.php?Service=36 2025-03-21 10:18:25 CHANGE CONTROL NOTICE
Service Restored https://status.dal.ca/service.php?Service=6 2025-03-21 09:15:50 Some users' Exchange Online email messages may be unexpectedly quarantined

Issue ID: EX1038119
Affected services: Exchange Online
Status: Service degradation
Issue type: Incident
Start time: Mar 21, 2025, 7:11 AM ADT

User impact
Users' Exchange Online email messages may be unexpectedly quarantined.

Scope of impact
Impact is specific to some users who are served through the affected infrastructure.


Current status:
Mar 21, 2025, 7:12 AM ADT
We're analyzing trends in diagnostic telemetry to correlate specific affected URLs and determine our next troubleshooting steps.

Next update by:
Friday, March 21, 2025 at 9:30 AM ADT https://status.dal.ca/service.php?Service=39 2025-03-21 10:14:54 TEAMS NOTICE
Some users' apps, such as the Calendar and OneDrive, aren't appearing in the Teams sidebar
Service Restored

User impact: Users' apps, such as the Calendar and OneDrive, weren't appearing in the Teams sidebar.
Final status: The service provider has completed restarting the cache of users on affected portions of Teams service infrastructure and received confirmation from some users who initially reported the issue that the impact is remediated.
Start time: Tuesday, March 18, 2025, at 3:14 PM AST
End time: Thursday, March 20, 2025, at 5:07 PM AST https://status.dal.ca/service.php?Service=21 2025-03-21 08:21:55 Active Issues:

1) Users' SharePoint Online column filter is not working as expected. When filling out the list/library column filter text box after typing the first letter the first matching term automatically auto-fills, requiring the users to delete the auto-fill if they want to select another term. It also affects Managed Metadata / Taxonomy columns.

2) Users may be unable to search or see recommendations in SharePoint or OneDrive. https://status.dal.ca/service.php?Service=39 2025-03-21 09:53:21 TEAMS NOTICE
Title: Some users may be unable to see the Calendar icon in the Teams sidebar
Service Degradation

More info: Affected users can clear their Teams cache to restore the Calendar icon to the Teams sidebar.
Current status: We're reviewing reproductions of the problem along with client and web logs to better understand the underlying impact scenario. Simultaneously, we're reaching out to a subset of affected users to validate if additional icons may be missing from the Microsoft Teams sidebar.
Scope of impact: Users who are processed through the affected portions of Microsoft Teams service infrastructure may be unable to see the Calendar icon in the Microsoft Teams sidebar.
Next update by: Thursday, March 20, 2025, at 5:30 PM UTC https://status.dal.ca/service.php?Service=36 2025-03-04 11:15:47 CHANGE CONTROL NOTICE

Type Of Work: Maintenance

Customer: Canary NOC

Change Control ID : 1974418

Start Date (yyyy-mm-dd): 2025-03-21
End Date (yyyy-mm-dd): 2025-03-21

Country: Canada

Location Of Work: Dartmouth - NS

Reason For Work: Network Testing/Maintenance

Release Window (24 hr format): 00:00 - 06:00 Atlantic

Affected Circuits:
00152705 - Fundy Web Canarie 10Gig - 228 Elizabeth Ave, St John's, NL <> 6225 University Ave, Halifax, NS

Service Interruption Duration: 2 hours

Service Impact:
Your services will be impacted while we troubleshoot issues on a DWDM Fiber span. https://status.dal.ca/service.php?Service=6 2025-03-20 10:08:41 Status
Service Restored

Impacted services
Exchange Online

Title: Some users may be unable to search in Exchange Online using Outlook on the web or the new Outlook client
User impact: Users may be unable to search in Exchange Online using Outlook on the web or the new Outlook client.
More info: Affected users may have seen the following error message "We didn't find anything, try a different keyword" when performing searches in Exchange Online.
As a workaround, users may have been able to yield results using a filter in their search criteria i.e. 'Inbox' under folder names, in addition to a string query.
Final status: After validating with a subset of affected users, we've confirmed that impact is resolved. For affected users that are still experiencing search failures, restarting or refreshing Outlook on the web or the new Outlook client will resolve any lingering search issues.
Scope of impact: Impact was specific to some users, who were served through the affected infrastructure, attempting to search in Exchange Online.
Start time: Tuesday, March 18, 2025, at 2:00 AM UTC
End time: Wednesday, March 19, 2025, at 8:05 PM UTC
Root cause: A recent Exchange Online update introduced a code error, which caused some users to been unable to search in Exchange Online using Outlook on the web or the new Outlook client.
Next steps:
- We're continuing to analyze and evaluate the affected Exchange Online update that introduced the code error to understand why impact wasn't caught during the update testing and validation phase. This will help to prevent similar impact from occurring in future and to continue our ongoing efforts to improve the resiliency of our service for all users.
This is the final update for the event. https://status.dal.ca/service.php?Service=6 2025-03-20 09:59:17 Status
Service Restored

Impacted services
Exchange Online

Title: Some users may be unable to access Outlook on the web
User impact: Users may have been unable to access Outlook on the web.
More info: Impacted users may have experienced a "Something went wrong" error message.
Final status: We've successfully reverted the problematic code change and verified the issue has been remediated through customer confirmation and service health telemetry.
Scope of impact: Any user routed through the affected infrastructure attempting to access Outlook on the web may have been impacted.
Start time: Wednesday, March 19, 2025, at 4:51 PM UTC
End time: Wednesday, March 19, 2025, at 6:55 PM UTC
Preliminary root cause: A recent configuration change intended to improve the use of browser content policies within Outlook on the web, introduced a code regression resulting in impact.
Next steps:
- We're assessing our service monitoring of this impact scenario to implement improvements for detecting similar events and reduce our time to identify, mitigate, or prevent this type of impact.
We'll provide a preliminary Post-Incident Report within two business days and a final Post-Incident Report within five business days. https://status.dal.ca/service.php?Service=6 2025-03-20 09:56:11 Status
Service Degradation

Impacted services
Exchange Online

Title: Some users may be unable to access Outlook on the web
User impact: Users may be unable to access Outlook on the web.
More info: Impacted users may experience a "Something went wrong" error message.
Current status: We've reproduced the issue and gathered diagnostic data for analysis into the underlying root cause.
Scope of impact: Any user attempting to access Outlook on the web may be impacted.
Next update by: Wednesday, March 19, 2025, at 7:30 PM UTC https://status.dal.ca/service.php?Service=37 2025-03-18 10:46:50 Ticket ID: 21057 (Maintenance - Scheduled - Medium)
Start Date: Mar 19, 2025 10:00 PM EST
End Date: Mar 20, 2025 07:00 AM EST
Cause: Upgrade - Software

Service Outage Details
During this time, service interruptions may occur. Active PTT sessions may experience drops, new sessions can be initiated after 30 seconds.

Impacted Services
Push to Talk

Impacted Locations / Sites
Canada https://status.dal.ca/service.php?Service=6 2025-03-19 14:36:36 Status
Service Restored

Impacted services
Exchange Online

Title: Users with apostrophes in their surname in Exchange Online may be unable to search for other users
User impact: Users with apostrophes in their surname in Exchange Online were unable to search for other users.
Final status: We've completed deployment of our solution throughout the affected environments, and after monitoring the service, we've verified that this action has successfully remediated the problem.
Scope of impact: This issue may have impacted any user with an apostrophe in their surname in Exchange Online that was searching for other users.
Start time: Wednesday, February 5, 2025, at 4:50 PM UTC
End time: Tuesday, March 18, 2025, at 7:00 PM UTC
Root cause: The URL utilized by the Outlook service when performing searches was malformed due to the code not providing the full email address of users with apostrophes in their address when submitting the request.
Next steps:
- We're investigating why the URL used by the Outlook service for searches was malformed to help us avoid similar impact in the future.
This is the final update for the event. https://status.dal.ca/service.php?Service=37 2025-03-18 10:44:51 Ticket ID: 21056 (Maintenance - Scheduled - Medium)
Start Date: Mar 19, 2025 12:00 AM EST
End Date: Mar 19, 2025 07:00 AM EST
Cause: Upgrade - Software

Service Outage Details
During this time, PTT users should not experience any service impact. However, service interruptions may occur in an unanticipated condition.

Impacted Services
Push to Talk

Impacted Locations / Sites
Canada https://status.dal.ca/service.php?Service=37 2025-03-14 16:24:00 Ticket ID: 21054 (Maintenance - Scheduled - Major)
Start Date: Mar 19, 2025 11:00 AM EST
End Date: Mar 20, 2025 06:00 AM EST
Cause: Hardware - Software upgrade

Service Outage Details
Service interruptions may occur. Active PTT sessions may experience drops, new sessions can be initiated after 30 seconds.

Impacted Services
Push to Talk

Impacted Locations / Sites
Canada https://status.dal.ca/service.php?Service=39 2025-03-19 10:38:09 Status
Service Restored

Impacted services
Microsoft Teams

Title: Some users may receive a cancellation email when the attendees list is edited for existing town hall meetings
User impact: Users may have received a cancellation email when the attendees list was edited for existing town hall meetings
More info: To bypass the issue, meeting organizers should have avoided making edits that only change the co-organizers, presenters, or attendees. Making other edits in addition to edits to these categories may have allowed meeting organizers to avoid the impact.
The town hall meetings weren’t canceled and users who received this email could still attend the meeting as expected using the previously provided details.
Final status: Our deployment to revert the recent update has completed across all impacted infrastructure. After a period of internal service monitoring, we've confirmed that user impact is resolved.
Scope of impact: Some users who were added as attendees to Microsoft Teams town halls and had previously accepted the invitation may have been impacted.
Start time: Wednesday, January 15, 2025, at 5:00 PM UTC
End time: Tuesday, March 18, 2025, at 6:50 PM UTC
Root cause: A service change, meant to improve the editing experience for meeting invites by ensuring that only added or removed attendees receive notifications of the change to their email, was causing impact.
Next steps:
- We're continuing to analyze and review the affecting service change to better understand why impact wasn’t caught during the testing and validation phase. This is to ensure that similar impact doesn’t occur again and to continue our ongoing efforts to improve the resiliency of our service for all users.
This is the final update for the event. https://status.dal.ca/service.php?Service=6 2025-03-19 10:33:36 Status
Service Degradation

Impacted services
Exchange Online

Title: Some users are unable to search in Outlook on the web and receive an error message

User impact: Users are unable to search in Outlook on the web and receive an error message.

More info: Impacted users receive the following error message "We didn't find anything, try different keyword" when performing searches in Outlook on the web.
Current status: We're analyzing HTTP Archive format (HAR) logs and recordings provided in the support case to determine our next troubleshooting steps.
Scope of impact: Impact is specific to some users who are served through the affected infrastructure.
Next update by: Wednesday, March 19, 2025, at 9:30 AM UTC https://status.dal.ca/service.php?Service=6 2025-03-18 10:38:19 Status
Investigation Suspended

Impacted services
Exchange Online

Title: Users may be experiencing issues with accessing email messages on the iOS native mail app

User impact: Users may have been experiencing issues with accessing email messages on the iOS native mail app.

More info: Users may have been able to click "continue" when prompted and navigate back to re-entering their password to attempt to resolve impact. If users weren't prompted but were still experiencing impact, they may have followed the steps in the following link:
https://support.microsoft.com/en-us/office/reconnecting-your-microsoft-365-account-to-apple-mail-83df246e-34d2-4dbb-8e37-23a90c13e16e
The problem was specific to the native mail app on iOS devices. Microsoft Outlook for mobile was not affected and could have been used without issue.
Impacted users were encouraged to file a support ticket with Apple to provide valuable logging information to assist with our continued joint investigation with Apple into the source of impact.
Final status: We've confirmed after monitoring service health telemetry that errors associated with impact have reduced to pre-impact thresholds as of Saturday, March 15, 2025, at 2:00 PM UTC. This confirms that the majority of users are no longer affected by this event and that additional remediation efforts within the Microsoft-managed environment aren't required. As previously mentioned, users whose impact persists should follow the steps outlined in the "More info" of this communication to remediate impact.
Scope of impact: Some users accessing their email from the native iOS email app may have been affected.
Start time: Monday, March 3, 2025, at 12:10 AM UTC
Next steps:
- We’ll continue partnering with Apple to gain root cause insights, though this is a best-effort as the underlying issue didn’t reside within the Microsoft-managed environment.
- Follow the steps outlined in the “More info” of this communication in the event you’re still affected.
This is the final update for the event. https://status.dal.ca/service.php?Service=6 2025-03-18 10:37:58 Status
Investigation Suspended

Impacted services
Exchange Online

Title: Users may be experiencing issues with accessing email messages on the iOS native mail app

User impact: Users may have been experiencing issues with accessing email messages on the iOS native mail app.

More info: Users may have been able to click "continue" when prompted and navigate back to re-entering their password to attempt to resolve impact. If users weren't prompted but were still experiencing impact, they may have followed the steps in the following link:
https://support.microsoft.com/en-us/office/reconnecting-your-microsoft-365-account-to-apple-mail-83df246e-34d2-4dbb-8e37-23a90c13e16e
The problem was specific to the native mail app on iOS devices. Microsoft Outlook for mobile was not affected and could have been used without issue.
Impacted users were encouraged to file a support ticket with Apple to provide valuable logging information to assist with our continued joint investigation with Apple into the source of impact.
Final status: We've confirmed after monitoring service health telemetry that errors associated with impact have reduced to pre-impact thresholds as of Saturday, March 15, 2025, at 2:00 PM UTC. This confirms that the majority of users are no longer affected by this event and that additional remediation efforts within the Microsoft-managed environment aren't required. As previously mentioned, users whose impact persists should follow the steps outlined in the "More info" of this communication to remediate impact.
Scope of impact: Some users accessing their email from the native iOS email app may have been affected.
Start time: Monday, March 3, 2025, at 12:10 AM UTC
Next steps:
- We’ll continue partnering with Apple to gain root cause insights, though this is a best-effort as the underlying issue didn’t reside within the Microsoft-managed environment.
- Follow the steps outlined in the “More info” of this communication in the event you’re still affected.
This is the final update for the event. https://status.dal.ca/service.php?Service=37 2025-03-18 10:42:48 Ticket ID: 21055 (Maintenance - Scheduled - Medium)
Start Date: Mar 17, 2025 10:00 PM EST
End Date: Mar 18, 2025 07:00 AM EST
Cause: Upgrade - Software
Service Outage Details
During this time, PTT users should not experience any service impact. However, service interruptions may occur in an unanticipated condition.

Impacted Services
Push to Talk

Impacted Locations / Sites
Canada https://status.dal.ca/service.php?Service=43 2025-03-17 15:13:59 Microsoft resolved an issue where users may have experienced failures when attempting to use a subset of Power Platform connectors:
- office365users
- excelonlinebusiness
- sharepointonline
- filesystem
- keyvault
- office365
- commondataservice
- azureblob
- sql
- conversionservice https://status.dal.ca/service.php?Service=37 2025-03-14 16:22:11 Ticket ID: 21053 (Maintenance - Scheduled - Major)
Start Date: Mar 17, 2025 11:00 PM EST
End Date: Mar 18, 2025 06:00 AM EST
Cause: Hardware - Software upgrade

Service Outage Details
Service interruptions may occur. Active PTT sessions may experience drops, new sessions can be initiated after 30 seconds.

Impacted Services
Push to Talk

Impacted Locations / Sites
Canada https://status.dal.ca/service.php?Service=36 2025-03-17 09:33:03 Completed https://status.dal.ca/service.php?Service=6 2025-03-14 10:30:57 Status
Service Degradation

Impacted services
Exchange Online

Title: Some users may encounter Non-Delivery Report (NDR) failures when sending or receiving email messages

User impact: Some users may encounter NDR failures when sending or receiving email messages in Exchange Online.

More info: Users may receive a Non-Delivery Report (NDR) containing an error stating "554 5.6.0 Corrupt message content".
Current status: We've identified that impact is not limited to users sending IRM protected email as we previously communicated. We've updated the title, user impact, more info and scope of impact sections of this communication to reflect that new information. Our previously stated fix will continue deploying to affected infrastructure while we continue monitoring its efficacy as it progresses. Concurrently, we’ve shifted attention to our reproduction efforts and deeper log analysis to further isolate the cause of impact and identify new mitigation strategies.
Scope of impact: Some users serviced by the impacted portion of infrastructure sending or receiving email in Exchange Online may be affected, although impact is limited to a small subset of messages.
Next update by: Friday, March 14, 2025, at 6:30 PM UTC https://status.dal.ca/service.php?Service=6 2025-03-14 10:25:38 Status
Service Restored

Impacted services
Exchange Online

Title: Some users may see add-ins in Outlook desktop and Outlook on the web that aren't installed or removable

User impact: Users may have seen add-ins in Outlook desktop and Outlook on the web that weren't installed or removable.

More info: As a temporary workaround, affected users could have disabled ‘Show Apps in Outlook’ for relief, but this only applied to classic Outlook on Windows. There was no workaround for Outlook on the web, new Outlook on Windows, or Outlook for Mac.
Final status: Following the deployment of our fix, our internal tests and validations from affected users have confirmed that the code problems have been addressed, and that impact has been remediated.
Scope of impact: Some users may have seen add-ins in the Outlook desktop client and Outlook on the web which weren't installed and couldn't be removed.
Start time: Thursday, January 9, 2025, at 8:36 PM UTC
End time: Thursday, March 13, 2025, at 8:15 PM UTC
Root cause: A service update to a portion of service infrastructure that facilitates identification of which add-ins are enabled for users in Outlook on the web and the Outlook desktop client contained an impacting code issue.
Next steps:
- We're further analyzing the offending service update so we can help identify similar issues during our pre-deployment testing and validation processes.
This is the final update for the event. https://status.dal.ca/service.php?Service=38 2025-03-14 10:22:28 Status
Service Restored

Impacted services
Microsoft 365 suite

Title: Users may be unable to load Office Scripts in Excel or Excel for the web

User impact: Users may have been unable to load Office Scripts in Excel or Excel for the web.

More info: Users encountering this issue may have seen an error that stated, "Office Scripts service is unreachable. Please check network and firewall settings."
Final status: We've disabled the update deployment, which was a feature for security improvements that we identified had adversely affected the backing service for Office Scripts, and confirmed through telemetry and testing that this has resolved the impact.
Scope of impact: This may have affected users served through East US, West US, North Europe, West Europe, and Southeast Asia.
Start time: Thursday, March 13, 2025, at 5:30 PM UTC
End time: Thursday, March 13, 2025, at 8:33 PM UTC
Root cause: A feature update to improve Office Scripts security, which was in the process of rolling out, had caused an adverse response for Office Scripts scenarios.
Next steps:
- We're continuing to review the security feature in conjunction with the impact it introduced to Office Scripts to improve our understanding of how it led to this problem. Based on our findings we'll implement additional testing and validation measures in future feature deployments to prevent similar impact from reoccurring.
This is the final update for the event. https://status.dal.ca/service.php?Service=38 2025-03-14 10:20:15 Status
Service Degradation

Impacted services
Microsoft 365 suite

Title: Users may be unable to load Office Scripts in Excel or Excel for the web

User impact: Users may be unable to load Office Scripts in Excel or Excel for the web.

More info: Users encountering this issue may see an error that states, "Office Scripts service is unreachable. Please check network and firewall settings."
Current status: We're seeing an increase in errors and a drop in traffic for the Office Scripts service that correlate with the reports of impact. We're proactively taking steps to disable a recent update to assess if that helps to address the issue while reviewing available data to understand the underlying cause of the impact.
Scope of impact: This may affect users served through East US, West US, North Europe, West Europe, and Southeast Asia may be affected.
Next update by: Thursday, March 13, 2025, at 9:30 PM UTC https://status.dal.ca/service.php?Service=6 2025-03-14 10:17:14 Status
Service Restored

Impacted services
Exchange Online

Title: Users may encounter delays or failures when sending or receiving email messages in Exchange Online

User impact: Users may have encountered delays or failures when sending or receiving email messages in Exchange Online.

Final status: We've identified that the remaining impact relates to a separate issue which exhibits a nearly identical impact to users. We've confirmed that our fix completed in the affected environment and impact for this issue is remediated based on our internal monitoring. We'll continue investigating the root cause of the remaining impact and supplying further updates in EX1030895.
Scope of impact: Any user serviced by the impacted portion of infrastructure sending or receiving some email in Exchange Online may have been affected.
Start time: Friday, March 7, 2025, at 5:30 PM UTC
End time: Thursday, March 13, 2025, at 5:00 PM UTC
Root cause: A recent service update, intended to improve our message transport services, introduced a code issue that resulted in impact for a portion of service infrastructure.
Next steps:
- We're reviewing our service update validation procedures to detect and prevent similar issues from occurring in the future.
This is the final update for the event. https://status.dal.ca/service.php?Service=6 2025-03-13 14:17:02 Status
Service Degradation

Impacted services
Exchange Online

Title: Users may encounter delays or failures when sending or receiving email messages in Exchange Online

User impact: Users may encounter delays or failures when sending or receiving email messages in Exchange Online.

More info: Users encountering failures when sending email messages receive a Non-Delivery Report (NDR) containing an error stating "554 5.6.0 Corrupt message content".
Additionally, users may be unable to send email messages with attached files in any connection method of Exchange Online. Sending attachments as ZIP files allows the email messages to be delivered as expected, serving as a method by which to bypass the issue while we continue to investigate.
Current status: Though we've deployed the fix to 95 percent of the affected environment, we've received continued reports of impact that indicate our fix may not have corrected this issue as expected. We've halted the fix deployment and are reviewing these reports to determine our next steps.
Scope of impact: Any user serviced by the impacted portion of infrastructure sending or receiving some email in Exchange Online may be affected.
Start time: Friday, March 7, 2025, at 5:30 PM UTC
Root cause: A recent service update, intended to improve our message transport services, introduced a code issue that's resulting in impact for a portion of service infrastructure.
Next update by: Thursday, March 13, 2025, at 6:30 PM UTC https://status.dal.ca/service.php?Service=36 2025-03-13 09:45:05 Eastlink Change Control Completion Notice


Update Information: This work has been rescheduled to 13 March from 26 February, sorry for any inconvenience this may have caused.

Customer: Mi'kmaw Kina'matnewey

Change Control ID : 1961724

Start Date: 2025-03-13

End Date: 2025-03-13

Country: Canada

Location Of Work: Halifax, NS

Reason For Work: Hardware Upgrade

Release Window (24 hr format): 00:00 - 05:00 Atlantic

Affected Circuits:
00143232 - 103-7071 Bayers Rd - LL03, Halifax, NS <> 50 Maillard, Membertou, NS

Service Impact: Your services will be impacted while we do a hardware upgrade. https://status.dal.ca/service.php?Service=36 2025-02-28 15:05:53 Eastlink URGENT – Update to Change Notice


Update Information: This work has been rescheduled to 13 March from 26 February, sorry for any inconvenience this may have caused.

Type Of Work: Project

Customer: Mi'kmaw Kina'matnewey

Change Control ID : 1961724

Start Date (yyyy-mm-dd): 2025-03-13

End Date (yyyy-mm-dd): 2025-03-13

Country: Canada

Location Of Work: Halifax, NS

Reason For Work: Hardware Upgrade

Release Window (24 hr format): 00:00 - 05:00 Atlantic

Affected Circuits:
00143232 - 103-7071 Bayers Rd - LL03, Halifax, NS <> 50 Maillard, Membertou, NS

Service Interruption Duration: 2 hours

Service Impact:
Your services will be impacted while we do a hardware upgrade. https://status.dal.ca/service.php?Service=6 2025-03-12 15:48:35 Status
Service Degradation

Impacted services
Exchange Online

Title: Some users may see add-ins in Outlook desktop and Outlook on the web that aren't installed or removable

User impact: Users may see add-ins in Outlook desktop and Outlook on the web that aren't installed or removable.

More info: As a temporary workaround, affected users can disable ‘Show Apps in Outlook’ for relief, but this only applies to classic Outlook on Windows. There is no workaround for Outlook on the web, new Outlook on Windows, or Outlook for Mac.
Current status: We've completed our review of the HAR log traces and identified that a service update to a portion of service infrastructure that facilitates identification of which add-ins are enabled for users in Outlook on the web and the Outlook desktop client contains a code issue, resulting in impact. We're developing a fix to address the code issue, and we'll aim to provide a timeline for the development process to complete by our next scheduled communications update.
Scope of impact: Some users may see add-ins in the Outlook desktop client and Outlook on the web which aren't installed and can't be removed.
Start time: Thursday, January 9, 2025, at 8:36 PM UTC
Root cause: A service update to a portion of service infrastructure that facilitates identification of which add-ins are enabled for users in Outlook on the web and the Outlook desktop client contains a code issue, resulting in impact.
Next update by: Wednesday, March 12, 2025, at 7:30 PM UTC https://status.dal.ca/service.php?Service=39 2025-03-12 15:45:28 Status
Service Restored

Impacted services
Microsoft Teams

Title: Users' calls disconnect with an error when they are made using an extension in the Microsoft Teams desktop client

User impact: Users' calls may have disconnected with an error when made using an extension in the Microsoft Teams desktop client.

More info: Calls made with extensions may have disconnected with the following error: "BackToBackOfferDeclinedByPeer".
Users could bypass the impact where possible by using the Microsoft Teams web client.
Final status: We've completed the reversion of the code change leading to impact, and we've monitored our service health telemetry to confirm that impact is remediated.
Scope of impact: This issue may have impacted any user leveraging an extension to make calls in the Microsoft Teams desktop client.
Start time: Monday, February 24, 2025, at 5:18 PM UTC
End time: Tuesday, March 11, 2025, at 1:29 PM UTC
Root cause: A recent code change intended to improve service performance and reliability contained a code regression that resulted in impact.
Next steps:
- We're reviewing our Microsoft Teams service update procedures pertaining to the code base responsible for facilitating calls made using extensions to prevent similar impact in future updates.
This is the final update for the event. https://status.dal.ca/service.php?Service=39 2025-03-12 15:42:15 Status
Service Degradation

Impacted services
Microsoft Teams

Title: Some users may receive cancellation email when distribution lists are added as attendees to town hall meetings

User impact: Users may receive cancellation email when distribution lists are added as attendees to town hall meetings.

More info: The town hall meetings aren’t canceled and users who receive this email can still attend the meeting as expected using the previously provided details.
Current status: We're continuing to review recent service changes to isolate the source of the issue and determine possible options to remediate the impact.
Scope of impact: Some users who are included in distribution lists that are added as attendees to Microsoft Teams town halls and have previously accepted the invitation may be impacted.
Next update by: Wednesday, March 12, 2025, at 8:00 PM UTC https://status.dal.ca/service.php?Service=36 2025-03-12 13:06:38 Update Information: Work ran late due to an unexpected issue, and is now completed,

Customer: ACORN NS

Change Control ID : 1983273

Start Date: 2025-03-12

End Date: 2025-03-12

Country: Canada

Location Of Work: Saint Croix, NS

Reason For Work: Fibre Repair Work

Release Window (24 hr format): 00:00 - 06:00 Atlantic

Affected Circuits:
00141787 - ACORN NS - acorn-wdsr-1 Twe1/0/24 <> acorn-blby-1 Fo1/0/23

Service Impact: Your services will be impacted while we do emergency fibre repair work. https://status.dal.ca/service.php?Service=6 2025-03-12 11:01:29 Status
Service Restored

Impacted services
Exchange Online

Details



Title: Users opening a published Exchange Online calendar may see incorrect dates when opening the HTML link


User impact: Users opening a published Exchange Online calendar may have seen incorrect dates when opening the HTML link.
More info: This issue impacted calendar appointments opened through HTML links in any Exchange Online connection method.
Final status: Our deployment of the previously mentioned fix is complete, and we've monitored our service health telemetry to confirm that impact is remediated.
Scope of impact: Any user attempting to open a published Exchange Online calendar by leveraging the HTML link may have been impacted.
Start time: Monday, February 3, 2025, at 2:00 PM UTC
End time: Monday, March 10, 2025, at 11:00 PM UTC
Root cause: A fix to correct an issue with an unrelated feature has introduced a code issue which resulted in impact.
Next steps:
- We're reviewing our Exchange Online code fix development and testing procedures pertaining to the code base responsible for syncing the date in Exchange Online calendar items to prevent similar issues in future repair actions.
This is the final update for the event. https://status.dal.ca/service.php?Service=36 2025-03-11 15:21:22 EMERGENCY CHANGE CONTROL NOTICE

Type Of Work: Emergency

Customer: ACORN NS

Change Control ID : 1983273

Start Date (yyyy-mm-dd): 2025-03-12
End Date (yyyy-mm-dd): 2025-03-12

Location Of Work: Saint Croix, NS

Reason For Work: Fibre Repair Work

Release Window (24 hr format): 00:00 - 06:00 Atlantic

Affected Circuits:
00141787 - ACORN NS - acorn-wdsr-1 Twe1/0/24 <> acorn-blby-1 Fo1/0/23

Service Interruption Duration: 3 hours

Service Impact:
Your services will be impacted while we do emergency fibre repair work. https://status.dal.ca/service.php?Service=6 2025-03-11 12:38:01 EXCHANGE NOTICE
Users may see an error and can't attach M365 data to email messages using the new Outlook for Windows
Service Degradation

More info: Impact includes, but is not limited to attaching the following:
- OneDrive for Business content
- SharePoint Online site links
- Loop components
- Copilot output
Affected users may see the following error -
"Need more information. To satisfy your organization's security policy, an additional step is required."
While the service provider is working to remediate this issue, affected users can attach these items using other connection methods, including:
- Outlook on the web
- Classic Outlook
- Outlook desktop clients
- Outlook mobile
Current status: The service provider has identified an authentication issue on a portion of impacted infrastructure responsible for attaching M365 data to email messages using the new Outlook for Windows. They're developing a code fix to resolve the underlying issue while simultaneously further reviewing the authentication issue to understand how it was introduced. https://status.dal.ca/service.php?Service=39 2025-03-11 12:35:35 TEAMS NOTICE
Some users may receive an error when attempting to share to Outlook in Microsoft Teams
Service Restored

More info: The right-click menu containing the "Share in Outlook" feature may not have been available for the affected users in Teams.
Final status: The service provider has completed deploying a fix to the impacted service environments, and they've subsequently monitored their service health telemetry to confirm that the impact is remediated.
Start time: Wednesday, February 26, 2025, at 5:40 AM AST
End time: Monday, March 10, 2025, at 2:58 PM AST https://status.dal.ca/service.php?Service=4 2025-03-11 11:36:17 Cognos PROD is back online, thanks so much for your patience. https://status.dal.ca/service.php?Service=21 2025-03-11 08:37:48 Users may be unable to search or see recommendations in SharePoint or OneDrive. https://status.dal.ca/service.php?Service=39 2025-03-10 14:53:25 TEAMS NOTICE
Some users may receive an error when attempting to share to Outlook in Teams
Service Degradation

More info: The right-click menu containing the "Share in Outlook" feature may not be available for the affected users in Teams.
Current status: The service provider's investigation has determined that a recent update to the Teams code base that facilitates sharing to Outlook introduced a code error that's preventing share requests from being filled, leading to impact. They've developed a fix to revert the offending update and repair this error, and they're initiating deployment to the impacted service environments. https://status.dal.ca/service.php?Service=38 2025-03-10 12:42:02 M365 NOTICE
Some users may be unable to search or see recommendations in multiple M365 services
Service Degradation

More info: Impacted services include, but aren't limited to:
- Outlook on the web and desktop client
- Teams
Current status: The service provider has identified that a specific processing component, responsible for regulating functionality related to search and suggestions in multiple M365 services, is operating below acceptable thresholds due to an unexpected increase in inbound request traffic. They've applied performance optimizations and restarted affected infrastructures to reduce the incoming load and remediate impact, and they're actively monitoring the environment for signs of recovery. https://status.dal.ca/service.php?Service=38 2025-03-10 12:34:51 M365 NOTICE
Users may have experienced issues with multiple M365 features or services.
Service Restored

More info: Impacted M365 services and scenarios included:
Viva Engage impacted scenario:
- Users may have been able to use the Import from CSV functionality to add members to Viva Engage communities.
Teams impacted scenario:
- When the Teams groups are about to expire, owners may have received an alert to inform them of the expiration.
General impact:
- When M365 groups become ownerless it will notify the group members via email, but users may have been able to click on the accept button to become the new owner.
Final status: The service provider has confirmed impact is no longer occurring after an extended period of monitoring.
Scope of impact: Impact was specific to some users who were served through the affected infrastructure.
Start time: Monday, February 3, 2025, at 7:00 PM AST
End time: Tuesday, March 4, 2025 at 6:09 AM AST https://status.dal.ca/service.php?Service=39 2025-03-10 10:41:39 TEAMS NOTICE
Users' calls disconnect with an error when they are made using an extension in the Teams web client
Service Degradation

More info: Calls made with extensions may be disconnected with an error that states "BackToBackOfferDeclinedByPeer". This impacts version 25044.2208.3471.2155 of the Teams web client.
Current status: The service provider has isolated a recent update that intended to improve service performance and reliability that has introduced an impacting code regression that is causing some users' calls to disconnect when using an extension in the Teams web client. After confirming with affected users that reverting the service update has remediated the impact, they're scaling out their service update reversion process which is expected to remediate the impact. https://status.dal.ca/service.php?Service=38 2025-03-10 10:31:48 M365 NOTICE
Users may experience intermittent issues syncing policies and other data in various M365 services
Service Restored

User impact: Users may have experienced intermittent issues syncing policies and other data in various M365 services.
More info: Syncing for Data Loss Prevention (DLP) policies, label configurations, custom classifications, and tenant policy settings intermittently failed in clients leveraging the Messaging Identity and Provisioning (MIP) software development kit (SDK), such as the M365 desktop clients, Fabric, and Defender Advanced Threat Protection.
These policy sync issues also prevented user policies that had Safe Links enabled from being honored, which caused Safe Links to be disabled.
Final status: The deployment of the code change has completed, and after monitoring telemetry to ensure service is healthy, the service provider has verified the impact is remediated.
Start time: Tuesday, February 25, 2025, at 8:00 PM AST
End time: Friday, March 7, 2025, at 3:30 AM AST https://status.dal.ca/service.php?Service=36 2025-03-07 11:08:17 CHANGE CONTROL NOTICE
Service Restored https://status.dal.ca/service.php?Service=6 2025-03-07 11:07:01 EXCHANGE NOTICE
Some users opening a published calendar are seeing incorrect dates when opening the HTML link
Service Degradation

Current status: The service provider has identified that a fix to correct an issue with an unrelated feature has inadvertently caused impact. They're reverting the offending fix and monitoring as it saturates throughout the affected environments.
Scope of impact: Impact is specific to some users who are served through the affected infrastructure.
Root cause: A fix to correct an issue with an unrelated feature has inadvertently caused impact. https://status.dal.ca/service.php?Service=6 2025-03-07 11:05:12 EXCHANGE NOTICE
Some users may be unable to access Exchange Online mailboxes using multiple connection methods
Service Restored

More info: Affected users may have also experienced impact in the following scenarios:
- Outlook on the web and Outlook desktop client not loading, including when opening or composing email
- Email message delivery delays
- Calendar availability showed only busy statuses
- Finding times while scheduling meetings
- Users may have been unable to perform searches in SharePoint Online.
- Policies configured in the Cloud Policy service for M365 may have not been applied to the signed in user.
- Purview features such as adaptive scope evaluations, Purview Insider Risk management reports (user groups), Purview Data Lifecycle Management, Purview Data Loss Prevention (DLP) and Purview Information Protection service may have been affected in various ways.
- Email archiving, expirations based on retention and deletion of expired items may have been delayed.
- Users, Groups and SharePoint Sites in scope of Adaptive scope policies may have not been accurate, if there were recent changes to scope definition or user attributes.
- Users, Groups in scope of DLP Admin unit policies may have not been accurate, if there were recent changes to scope definition or changes to User attributes.
- Users may have been unable to use the Get Events API to access calendar events in the Graph API.
Final status: After an extended period of monitoring, the service provider has confirmed that the issue is resolved.
Scope of impact: Impact was specific to some users located or served by the affected infrastructure in North America, Europe, Japan, Canada, and United Kingdom.
Start time: Tuesday, March 4, 2025, at 10:09 PM AST
End time: Thursday, March 6, 2025, at 10:00 AM AST https://status.dal.ca/service.php?Service=38 2025-03-07 11:01:32 M365 NOTICE
Users may experience intermittent issues syncing policies and other data in various M365 services.
Service Degradation

More info: Syncing for Data Loss Prevention (DLP) policies, label configurations, custom classifications, and tenant policy settings intermittently fail in clients leveraging the Messaging Identity and Provisioning (MIP) software development kit (SDK), such as the Microsoft 365 desktop clients, Microsoft Fabric, and Defender Advanced Threat Protection.
These policy sync issues also prevent user policies that have Safe Links enabled from being honored, which causes Safe Links to be disabled.
Current status: The service provider has identified that a recently deployed feature update may be causing authentication issues that are resulting in impact. They're validating this suspicion by testing a code change in a limited environment. If this proved to be a viable solution that remediates impact, they'll apply this code change to all impacted users.
Scope of impact: Any user expecting their DLP policies, label configurations, custom classifications, or tenant policy settings to sync appropriately for services leveraging the Messaging Identity and Provisioning MIP SDK may be intermittently impacted. https://status.dal.ca/service.php?Service=39 2025-03-07 10:57:08 Status
Service Degradation
TM1019459

Details

Title: Users may be unable to start live transcription during Teams meetings
User impact: Users may be unable to start live transcription during Teams meetings.
Current status: The service provider can see in the logs that the allow transcription policy settings are showing correctly, however they've identified a recent change that may have updated the default transcription policy settings, potentially causing the allow transcription settings to get changed to false unexpectedly. They're reviewing the recent update to confirm if there were any updates to the allow transcription policy settings.
Scope of impact: This issue may potentially impact any user attempting to start live transcription during Teams meetings. https://status.dal.ca/service.php?Service=39 2025-03-07 10:58:59 TEAMS NOTICE
Users may be unable to screenshare after freshly installing Microsoft Teams for macOS version 15.x
Service Restored

Final status: The service provider has completed the deployment of their code fix and confirmed in their service health telemetry that impact was successfully resolved.
Start time: Monday, February 24, 2025, at 8:24 PM AST
End time: Thursday, March 6, 2025, at 8:55 AM AST https://status.dal.ca/service.php?Service=36 2025-02-28 15:05:42 Eastlink New Change Control Notice


Type Of Work: Expedite

Customer: Canary NOC

Change Control ID : 1976044

Start Date (yyyy-mm-dd): 2025-03-07

End Date (yyyy-mm-dd): 2025-03-07

Country: Canada

Location Of Work: Sheet Harbour, NS

Reason For Work: Damaged Fiber Cables

Release Window (24 hr format): 00:00 - 06:00 Atlantic

Affected Circuits:
00152705 - Fundy Web Canarie 10Gig - 228 Elizabeth Ave, St John's, NL <> 6225 University Ave, Halifax, NS

Service Interruption Duration: 4 hours

Service Impact:
Your services will be impacted while we performed Expedited repairs on Damaged Fiber Cables https://status.dal.ca/service.php?Service=9 2025-03-06 17:14:01 Maintenance activity completed.
VPN service can now be used without issues. https://status.dal.ca/service.php?Service=6 2025-03-06 15:00:03 Status
Extended Recovery
EX1023762

Details

Title: Some users may be unable to access Exchange Online mailboxes using multiple connection methods

User impact: Users may be unable to access Exchange Online mailboxes using multiple connection methods.

More info: Affected users may also experience impact to the following scenarios:
- Outlook on the web and Outlook desktop client not loading, including when opening or composing email
- Email message delivery delays
- Calendar availability shows only busy status'
- Finding times while scheduling meetings
- Users may be unable to perform searches in SharePoint Online.
- Policies configured in the Cloud Policy service for Microsoft 365 may not be applying to the signed in user.
- Purview features such as adaptive scope evaluations, Microsoft Purview Insider Risk management reports (user groups), Purview Data Lifecycle Management, Purview Data Loss Prevention (DLP) and Microsoft Purview Information Protection service may be affected in various ways.
- Email archiving, expirations based on retention and deletion of expired items may be delayed.
- Users, Groups and SharePoint Sites in scope of Adaptive scope policies may not be accurate, if there are recent changes to scope definition or user attributes.
- Users, Groups in scope of DLP Admin unit policies may not be accurate, if there are recent changes to scope definition or changes to User attributes.
- Users may be unable to use the Get Events API to access calendar events in the Graph API.

Current status: Telemetry shows that the service has remained healthy since Thursday, March 6, 2025, at 1:00 PM UTC. We’re continuing our extended monitoring of the service through the US business hours to fully confirm resolution.

Scope of impact: Impact is specific to some users located or served by the affected infrastructure in North America, Europe, Japan, Canada, and United Kingdom.

Start time: Wednesday, March 5, 2025, at 1:09 AM UTC

Root cause: An increase in user Directory API requests is causing a section of infrastructure, responsible for facilitating mailbox access requests, to perform below acceptable performance thresholds.

Next update by: Friday, March 7, 2025, at 1:00 AM UTC https://status.dal.ca/service.php?Service=21 2025-03-06 13:12:04 Resolved:

1) Users may have been unable to open Excel files in SharePoint Online. https://status.dal.ca/service.php?Service=21 2025-03-06 11:30:01 Active:

1) Users may be unable to open Excel files in SharePoint Online. https://status.dal.ca/service.php?Service=9 2025-03-06 09:35:57 There will be a maintenance activity on the VPN today at 5pm. Users will observe a disconnection for few seconds during this period, and an update counter for about 2 mins when reconnected. https://status.dal.ca/service.php?Service=17 2025-03-06 09:32:18 Some users are experiencing issues connecting to the Dalhousie and eduroam wireless networks.
The cause is being investigated. https://status.dal.ca/service.php?Service=6 2025-03-05 15:29:53 EXCHANGE NOTICE
Users may be experiencing issues with accessing email messages on the iOS native mail app
Service Degradation

Current status: The service provider is reviewing their service logs to aid in understanding the cause of impact and to develop their next steps.
Scope of impact: Any user serviced by the affected infrastructure may experience issues with accessing email messages on the iOS native mail app https://status.dal.ca/service.php?Service=41 2025-03-05 11:33:52 Virtual labs is no longer experiencing issues with applications. https://status.dal.ca/service.php?Service=6 2025-03-05 15:30:02 EXCHANGE NOTICE
Users with apostrophes in their surname in Exchange Online may be unable to search for other users.
Service Degradation

Current status: The service provider has successfully reproduced the issue in their internal testing environment. After analyzing the results of our reproduction, they've confirmed the request to get search results fails during the authentication process. They're investigating the source of this failure to assist with determining the root of the issue and formulating potential remediation options. https://status.dal.ca/service.php?Service=41 2025-03-05 10:50:05 We are currently experiencing issues with applications loading in virtual lab. Technicians are investigating. https://status.dal.ca/service.php?Service=6 2025-03-05 15:30:21 EXCHANGE NOTICE
Some users may be unable to open some attachments from email messages in Exchange Online
Service Degradation

User impact: Users may be unable to open some attachments from email messages in Exchange Online.
More info: Cloud attachments appear to be unaffected by this issue.
Current status: The service provider has identified an issue in which users may be unable to open attachments from email messages in Exchange Online. They’re reviewing a recent service update to determine if this may be responsible for introducing the problem.
Scope of impact: Some users may be affected when trying to open some attachments from email messages in Exchange Online. https://status.dal.ca/service.php?Service=6 2025-03-05 15:32:49 EXCHANGE NOTICE
Users may be unable to open some attachments from email messages in some Exchange Online connection methods
Service Restored

More info: Files attached directly to the emails as invite attachments were affected. Cloud file attachments appeared to be unaffected by this issue. This issue also appeared to be limited to the Outlook mobile app for iOS and Android as well as Outlook for Mac.
Final status: The process of reverting the problematic service update is complete, and the service provider's telemetry confirms that this issue is resolved.
Start time: Thursday, February 6, 2025, at 2:00 AM AST
End time: Wednesday, March 5, 2025, at 4:20 AM AST https://status.dal.ca/service.php?Service=36 2025-03-05 09:09:03 CHANGE CONTROL NOTICE
Service Restored https://status.dal.ca/service.php?Service=36 2025-02-11 13:24:54 CHANGE CONTROL NOTICE

Type Of Work: Maintenance

Customer: ACORN NS

Change Control ID : 1934685

Start Date (yyyy-mm-dd): 2025-03-05
End Date (yyyy-mm-dd): 2025-03-05

Location Of Work: Yarmouth, NS

Reason For Work: Software Upgrade

Release Window (24 hr format): 04:00 - 05:30 Atlantic

Affected Circuits:
00118531 - Universite Sainte-Anne - 1695 Route 1, Church Point, NS
00118537 - Yarmouth Hospital - 60 Vancouver St, Yarmouth, NS

Service Interruption Duration: 1.0 hours (60 mins)

Service Impact:
Your services will be impacted while we do a software upgrade. https://status.dal.ca/service.php?Service=39 2025-03-04 14:53:46 TEAMS NOTICE
Users may be unable to screenshare after freshly installing Teams for macOS version 15.x
Service Degradation

More info: Affected users may utilize the following workaround to re-enable screensharing:
1. Open System Settings
2. Select Privacy & Security
3. Select Screen & System Audio Recording
4. If Teams is available on the list of applications, delete it by selecting it and clicking -.
5. Click on + and select Teams from the Application folder.
6. Click on Quit & Reopen.
7. Verify Teams is enabled in the Screen & System Audio Recording tab.
8. Relaunch Teams.

Current status: The service provider has identified that a recent code change for Teams has introduced a code error for devices on macOS versions 15 and above that prevents a popup to enable screensharing from being presented to affected users. They're considering our options to correct the issue and remediate impact. https://status.dal.ca/service.php?Service=38 2025-03-04 10:42:19 M365 NOTICE
Users located in Canada and the Northeast US may experience issues accessing M365 services
Service Restored

More info: The following list isn't exhaustive, but provides examples of how users may have been impacted by this event:
- Exchange Online: Users may have been unable to connect to Exchange online through the Outlook desktop client, Outlook on the web, or Outlook mobile. Users may have seen an endless loading screen or an error.
- Teams: Users may have been unable to access Teams.
Users may have experienced authentication issues that prevented them from accessing other M365 apps.

Final status: After extended monitoring, the service provider has confirmed the service has fully recovered.
Scope of impact: Any user located in Canada, or whose network traffic was directed through the unhealthy infrastructure in Canada and the Northeast US, attempting to access M365 services may have been affected.
Start time: Monday, March 3, 2025, at 1:22 PM AST
End time: Monday, March 3, 2025, at 5:39 PM AST https://status.dal.ca/service.php?Service=40 2025-03-04 10:25:49 ONEDRIVE NOTICE
Users may be unable to edit their OneDrive for Business content as they are in a read-only state.
Service Retored

More info: The error message stated that "You can't edit your files because your license to use OneDrive ended over a month ago."
To mitigate the issue, admins should have updated user OneDrive configurations from unsupported states into supported states, as described here: https://learn.microsoft.com/sharepoint/manage-user-profiles#add-and-remove-admins-for-a-users-onedrive
Specifically, IT admins should have ensured that the owner (also known as the primary site collection administrator) of every OneDrive account is assigned to the correct user who owns that account and not a service account or group account.
As an optional workaround, admins could have removed the read-only lock via PowerShell by following the instructions here: https://learn.microsoft.com/en-us/sharepoint/manage-lock-status Please note: the read-only notification remained visible until full mitigation had been completed, however no archiving actions will have taken place.
Information about the service provider's enforcement of policy changes for unlicensed OneDrive accounts:
https://learn.microsoft.com/en-us/sharepoint/unlicensed-onedrive-accounts
Current status: The service provider has completed deploying the permanent fix to the affected infrastructure, and after a period of monitoring, they've determined impact is now resolved. https://status.dal.ca/service.php?Service=39 2025-03-04 14:56:32 TEAMS NOTICE
Title: Some users may be unable to load images within Teams chats or channels
Service Restored

User impact: Users may have been unable to load images within Teams chats or channels.
Final status: The service provider has identified a recent service update to a portion of the Teams service infrastructure, that introduced a new feature into the service that was causing impact. They've reverted the impacting service update, and confirmed through monitoring service health telemetry that impact has been remediated.
Start time: Tuesday, March 4, 2025, at 12:15 PM AST
End time: Tuesday, March 4, 2025, at 2:15 PM AST https://status.dal.ca/service.php?Service=39 2025-03-04 10:31:12 TEAMS NOTICE
Users may not have been able to receive calls placed through Teams provisioned auto attendants and call queues
Service Restored

More info: Callers routed through call queues may have heard a busy signal or the call may have rung for 45+ seconds and then ended.
Final status: The service provider's fix was successfully deployed. After an extended period of monitoring, they’ve confirmed through telemetry that service is restored and impact has been fully remediated.

Start time: Monday, March 3, 2025, at 1:00 PM AST
End time: Monday, March 3, 2025, at 5:19 PM AST https://status.dal.ca/service.php?Service=39 2025-03-04 11:06:21 TEAMS NOTICE
Users may have been unable to start live transcription during Teams meetings.
Service Restored

More Info: The problem was only impacting users who had changed a setting within any Teams meetings policy from the default value.
A portion of Teams meeting policies including transcription policy weren't being enforced for Teams meetings.
This issue may have also prevented users from utilizing CoPilot features within Teams meetings.
Final Status: Following the service provider's final service configuration change, their testing with affected users has confirmed that impact has been remediated.
Start time: Thursday, February 27, 2025, at 5:00 PM AST
End time: Saturday, March 1, 2025, at 3:00 PM AST https://status.dal.ca/service.php?Service=6 2025-03-04 10:39:24 EXCHANGE NOTICE
Users may have experienced issues with language settings and downloading attachments in Outlook on the web.
Service Restored

More info: Users were automatically defaulted to English for Outlook on the web when their default language setting was set to a non-English language. Users could manually reset their desired language as a temporary workaround. However, upon refreshing, signing out, or closing their tab, the language was reverted back to English.
In addition, users may have been unable to download or preview attachments from shared mailboxes in Outlook on the web. The Outlook desktop client and mobile apps were unaffected by this issue. Users that downloaded attachments from their own mailbox or any non-shared mailbox were unaffected.
Final status: The service provider has confirmed that the saturation of the fix completed and validated with internal testing that the impact is remediated.
Start time: Friday, February 21, 2025, at 11:00 PM AST
End time: Monday, March 3, 2025, at 1:00 PM AST https://status.dal.ca/service.php?Service=39 2025-03-03 15:12:01 TEAMS NOTICE
Users may not be able to receive calls placed through Teams-provisioned auto attendants and call queues
Service Degradation

Current status: The service provider has detected a potential authentication token issue that may be contributing to impact, and they're further examining this pathway to determine their next troubleshooting steps.
Scope of impact: Users expecting to make or receive calls routed through Microsoft Teams-provisioned auto attendants and call queues may be affected. https://status.dal.ca/service.php?Service=38 2025-03-03 13:55:34 Users located in Canada may experience issues accessing Microsoft 365 services. https://status.dal.ca/service.php?Service=38 2025-03-03 11:07:29 M365 NOTICE
Some users may experience issues with one or more M365 services
Service Restored

More info:
Impact scenarios from this event included:
- Users were unable to authenticate to M365 services, including Exchange and Outlook.
- Users were able to authenticate to Teams; however, users experienced degraded functionality including impact to chat/team creation and search.
- Users experienced issues with connectors/flows in the Power Platform and logic apps.
- Users received 500 errors and were unable to access the Purview service.
Final status: Following the service provider's reversion of the problematic code change, they’ve monitored service telemetry and worked with previously impacted customers to confirm that service is restored.
Scope of impact: Any user attempting to access or use the services and features outlined within the 'More info' section of this communication were impacted.
Start Time: Saturday, March 1, at 5:40 PM AST
End Time: Saturday, March 1, at 6:45 PM AST https://status.dal.ca/service.php?Service=6 2025-03-03 11:12:39 EXCHANGE NOTICE
Title: Some users may experience default language setting changes and issues downloading attachments in Outlook on the web
Service Degradation

User impact: Users may experience issues with language settings and downloading attachments in Outlook on the web.
More info: Users are automatically defaulted to English for Outlook on the web when their default language setting is set to a non-English language. Users can manually reset their desired language as a temporary workaround. However, upon refreshing, signing out, or closing their tab, the language is reverted back to English.
In addition, users may be unable to download or preview attachments from shared mailboxes in Outlook on the web. The Outlook desktop client and mobile apps are unaffected by this issue. Users downloading attachments from their own mailbox or any non-shared mailbox are also unaffected.

Current status: The service provider has completed their development of the previously mentioned reversion for the impacting update, and they're initiating deployment to the affected service environment. Some users may experience early relief as the reversion progresses throughout the impacted environment.

Scope of impact: Some users may be impacted if their default language is set to a non-English option in Outlook on the web, or if they're attempting to download or preview attachments from a shared mailbox. https://status.dal.ca/service.php?Service=39 2025-03-03 11:29:28 TEAMS NOTICE
Some users may be unable to create new chats in Teams iOS client on certain iPhone models
Service Restored

User impact: Users may have been unable to create new chats in Teams iOS client on certain iPhone models.
Final status: The service provider has completed reverting the offending configuration change to disable the offending code and validated with internal testing that the impact is remediated.
Start time: Wednesday, February 12, 2025, at 9:00 PM AST
End time: Monday, March 3, 2025, at 2:30 AM AST
Root cause: A recent configuration change update to the Teams iOS client contained a code issue that prevented users from creating new chats as expected on certain iPhone models.
Scope of impact: Some users on certain iPhone devices that were attempting to create new chats in the Microsoft Teams iOS client may have been impacted. https://status.dal.ca/service.php?Service=39 2025-03-03 11:17:24 TEAMS NOTICE
Some users’ location status may have appeared incorrect in Teams
Service Restored

More info: Real-time work location updates weren't working for users. Work location status displays user locations (Office, Remote) within the Teams client.
Final status: The service provider has deployed the fix and confirmed after a period of monitoring that impact is no longer occurring.
Start time: Sunday, March 2, 2025, at 4:30 AM AST
End time: Monday, March 3, 2025, at 6:05 PM AST https://status.dal.ca/service.php?Service=39 2025-03-03 10:46:52 TEAMS NOTICE
Some users may experience delays or failures performing various chat operations in Teams
Service Restored

User impact: Users may have experienced delays or failures performing various chat operations in Teams.
Final status: A recent power disturbance affected a portion of infrastructure responsible for processing various chat operations, which resulted in the impacting delays and failures. The service provider manually restarted the service and monitored telemetry to confirm this remediated the issue.
Start time: Friday, February 28, 2025, at 12:12 PM AST
End time: Friday, February 28, 2025, at 1:14 PM AST https://status.dal.ca/service.php?Service=39 2025-03-03 10:38:26 TEAMS NOTICE
Users may be unable to access Webinar registration links with Teams
Service Restored

More info: Users may have also been unable to access the event landing page.
Final status: The reversion process for the impacting service update has completed, and the service provider has confirmed through monitoring service health telemetry that impact has been remediated.
Scope of impact: Impact was specific to users who were served through the affected infrastructure attempting to access Webinar registration lings within Teams.
Start time: Thursday, February 27, 2025, at 2:02 PM AST
End time: Friday, February 28, 2025, at 2:00 PM AST https://status.dal.ca/service.php?Service=38 2025-03-03 08:39:21 Resolved:
Microsoft Planner: Users may not have been able to use the “Filter by keyword” option when accessing Microsoft Planner from Microsoft Teams. Additionally, users' profile pictures and initials were not always shown on Basic Microsoft Planner tasks or when assigning tasks to users. The user detail impact may have affected users leveraging any Microsoft Planner access method, including Planner on the web or Microsoft Planner within Microsoft Teams. https://status.dal.ca/service.php?Service=38 2025-02-28 09:52:14 Status
Service Restored
MO1017192


Details

Title: Some users may be unable to use features or access files which leverage Purview Information Protection labels

User impact: Some users may have been unable to use features or access files which leverage Information Protection labels.

More info: Some impacted scenarios may include:
- Opening email messages with Information Protection labels
- Accessing labeled files in SharePoint Online sites or OneDrive for Business
- Opening files or content in Microsoft 365 apps, such as Word, Excel, PowerPoint, and OneNote
- Accessing and exporting labeled artifacts in Fabric and Power BI
- Using Copilot (M365) to reference or access labeled files

Final status: We’ve completed the targeted restarts on the remaining subset of affected infrastructure. We’ve verified the issue has been remediated by monitoring service health telemetry.

Scope of impact: Some users may have been unable to use features or access files which leverage Information Protection labels.

Start time: Wednesday, February 26, 2025, at 12:00 AM UTC
End time: Thursday, February 27, 2025, at 2:00 AM UTC

Preliminary root cause: A recent change, to Entra ID tokens, that are issued to clients for calls to the Rights Management Service (RMS), contained a validation logic issue. After the change, tokens provided to RMS were rejected. This issue caused a subset of users to experience issues opening files with Information Protection labels applied.

Next steps:
- For a more comprehensive list of next steps and actions, please refer to the Post Incident Report document.
We'll provide a preliminary Post-Incident Report within two business days and a final Post-Incident Report within five business days.