https://status.dal.ca/ RSS feed of the Dalhousie Status Page updates. en-ca Thu, 28 Aug 2025 11:31:41 America/Halifax Copyright 2017 Dalhousie University. https://status.dal.ca/rss.php https://status.dal.ca/service.php?Service=36 2025-08-21 10:03:04 CHANGE CONTROL NOTICE

Type Of Work: Project

Customer: Canary NOC

Change Control ID : 2082823

Start Date (yyyy-mm-dd): 2025-09-12
End Date (yyyy-mm-dd): 2025-09-12

Location Of Work: CornerBrooke - NL

Reason For Work: Engineering Project

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

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

Service Interruption Duration: less than 30 minute

Service Impact:
Your services will be impacted while we perform Core Network Maintenance https://status.dal.ca/service.php?Service=9 2025-08-27 15:46:01 We will be patching our firewalls and management centers (FMC) to the vendor recommended patches on Sunday August 31st.

There will be intermittent service disruption during the maintenance window (5.00am - 10.00am). https://status.dal.ca/service.php?Service=39 2025-08-28 09:09:56 TEAMS NOTICE
Some users may be unable to create meetings from their new calendar in Teams
Service Degradation

More info: Impact is specific to some users who have set a meeting policy where copilot is disabled and meeting recording is set to 'On', which populates the following error message:
''Couldn't create a Teams meeting. Send the invite to reserve the time and try making it a Teams meeting later."
Current status: The service provider is waiting for confirmation from some users who initially reported the issue that manually adjusting a configuration change remediates impact as an immediate fix. Additionally, they're further investigating the underlying root cause to develop a long-term widespread solution. https://status.dal.ca/service.php?Service=39 2025-08-28 09:06:04 TEAMS NOTICE
Some users may be unable to access or open any Office files within Teams
Service Restored

More info: Any attempt to open, view, or access Office files within the Teams service including team channels and tabs would have failed.
While the service provider focused on remediation, affected users were able to open impacted files by selecting the alternate "Open in desktop” or “Open in browser” options as a workaround.
Impact was specific to Office documents embedded into Teams. Specifically, this affected products such as Word, Visio, Excel, PowerPoint, and OneNote files.
Final status: The service provider has completed deployment to all affected environments and have validated through customer feedback and monitoring that the issue has been resolved.

Start time: Wednesday, August 27, 2025, at 5:49 PM AST
End time: Thursday, August 28, 2025, at 1:07 AM AST https://status.dal.ca/service.php?Service=17 2025-08-28 08:11:57 ITS is investigating reports of wireless connectivity problems https://status.dal.ca/service.php?Service=38 2025-08-27 14:09:37 M365 NOTICE
Some users can't perform the Create or Publish Assignment operations in OneNote
Service Degradation

More info: In addition, users are unable to create notebooks in OneNote Class Notebook.
Current status: The service provider's review of the telemetry indicates that a partner service that OneNote relies on for Create and Publish Assignment operations is degraded, causing failures for some users. They anticipate that the repairs to the partner service will take some time to complete. In the meantime, they're manually running a fix operation to restore the Create and Publish Assignment functionality to the impacted infrastructure. Affected users may see the impact remediate as the fix operation propagates over time. https://status.dal.ca/service.php?Service=38 2025-08-27 14:16:07 M365 NOTICE
Some users may be unexpectedly disconnected when accessing multiple M365 services
Service Restored

More info: Affected M365 services included but may not have been limited to the following:
- Teams
- Outlook
Final status: After analyzing the spike in user reports for affected M365 services, the service provider has determined that a portion of their M365 network infrastructure, responsible for facilitating access to connected services, was operating in an unhealthy state and unable to process user requests effectively. They've removed the offending infrastructure from our service rotation, and after a period of monitoring service health telemetry, they've confirmed users can connect to M365 services as expected.

Start time: Wednesday, August 27, 2025, at 10:30 AM AST
End time: Wednesday, August 27, 2025, at 11:24 AM AST https://status.dal.ca/service.php?Service=38 2025-08-27 12:27:16 M365 NOTICE
Some users may see failures when attempting to access multiple M365 services
Service Degradation

More info: Affected M365 services include but may not be limited to the following:
- Teams
- Outlook
Current status: The service provider is analyzing a recent spike in user reports for M365 services, including Teams and Outlook, to verify the current impact scenario and affected services. These actions will allow them to determine their initial troubleshooting steps to isolate a potential root cause. https://status.dal.ca/service.php?Service=6 2025-08-27 10:30:35 EXCHANGE NOTICE
Some users may be unable to modify Exchange Online groups in Outlook on the web and encounter an error
Service Degradation

More info: Affected users may encounter the following error:
"This doesn't look right."
As a workaround, users who have access may be able to utilize the Outlook desktop client.
Current status: The service provider is monitoring the fix deployment as it progresses. https://status.dal.ca/service.php?Service=6 2025-08-27 09:21:11 EXCHANGE NOTICE
Users may not see updated unread message counts for some folders in Outlook on the web and Outlook for Mac
Service Degradation

More info: Users may need to refresh to see updated counts.
Current status: The service provider is continuing to investigate recent service updates to isolate the source of the exceptions and determine the cause of the authentication issues they're seeing in the affected environment. They're attempting to reproduce the issue to test which components of the recent updates are triggering the impact. https://status.dal.ca/service.php?Service=36 2025-08-26 09:55:58 COMPLETION NOTICE

Customer: ACORN NS

Change Control ID : 2059488

Start Date: 2025-08-26
End Date: 2025-08-26

Location Of Work: Bridgewater, NS

Reason For Work: Engineering Project

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

Affected Circuits:
00133272 - South Shore Reg Hospital - 90 Glen Allan, Bridgewater, NS
00118533 - South Shore Reg Hospital - 90 Glen Allan, Bridgewater, NS https://status.dal.ca/service.php?Service=6 2025-08-26 09:40:57 EXCHANGE NOTICE
Some users may see the time indicator on their calendars isn't reflecting accurately or updating
Service Degradation

More info: Impact is specific to users' calendars on the new Outlook desktop experience and Outlook on the web.
Affected users can restart the impacted Outlook client to have the time indicator sync and reflect accurately.
Current status: The service provider has received reports of an issue in which some users may see the time indicator on their calendars isn't reflecting accurately or updating on the new Outlook desktop experience and Outlook on the web. They suspect a recent Microsoft Edge update may have introduced a compatibility issue that's preventing the time indicator from updating and reflecting properly. They've developed a code change that they're deploying to their internal testing environment for validations to ensure it remediates impact before they deploy it to a broader scale. https://status.dal.ca/service.php?Service=43 2025-08-26 08:06:48 Resolved:
-- Power BI/Fabric: Users couldn't create private links and may have been unable to access the Microsoft Fabric portal. https://status.dal.ca/service.php?Service=36 2025-08-21 10:06:31 CHANGE CONTROL NOTICE

Type Of Work: Expedite

Customer: ACORN NS

Change Control ID : 2059488

Start Date (yyyy-mm-dd): 2025-08-26
End Date (yyyy-mm-dd): 2025-08-26

Location Of Work: Bridgewater, NS

Reason For Work: Engineering Project

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

Affected Circuits:
00133272 - South Shore Reg Hospital - 90 Glen Allan, Bridgewater, NS
00118533 - South Shore Reg Hospital - 90 Glen Allan, Bridgewater, NS

Service Interruption Duration: 2 hours

Service Impact:
Your services will be impacted while we do expedited hardware upgrade. https://status.dal.ca/service.php?Service=9 2025-08-24 08:46:51 Completed https://status.dal.ca/service.php?Service=6 2025-08-22 11:29:11 EXCHANGE NOTICE
Some users are unable to send or receive email from the Outlook mobile app on their devices
Service Degradation

More info: Affected users would be utilizing Hybrid Modern Authentication (HMA).
Current status: The service provider is continuing to monitor the progress of the deployment as it continues to saturate the affected environment. They'll provide a timeline for the completion of the deployment as one becomes available. https://status.dal.ca/service.php?Service=39 2025-08-22 10:47:45 TEAMS NOTICE
Some users may see a blank screen during meetings and calls from the Teams desktop version
Service Degradation

More info: This issue is limited to users who are on devices that leverage certain versions of Intel driver 32.0.101.69xx (including but not limited to, 32.0.101.6913, 32.0.101.6987, and 32.0.101.6989). Impacted users may see that Teams freezes for some time, and then it automatically recovers. For those that need immediate remediation, the service provider's telemetry indicates that version 32.0.101.6790 of the Intel driver reproduces this issue the least.
Affected users can use the Teams web app as a workaround until this issue is addressed.

Current status: The service provider is continuing to wait for confirmation to see if reverting to the last known healthy Teams desktop has resolved the isolated version driver issue. This evaluation will help determine if the reversion is a viable solution for mitigating impact across all affected users. Additionally, they've requested diagnostic logs from selected users to aid in identifying the root cause and developing a permanent fix. https://status.dal.ca/service.php?Service=39 2025-08-22 10:36:05 TEAMS NOTICE
Users may be unable to view the combined chat and channel view in the User Interface (UI)
Service Degradation

More info: The issue primarily affects the Teams desktop client. Users that have access to the Teams web client can use this to bypass the impact.
Additionally, users can temporarily work around the issue by clearing the cache in the desktop client.
Some users have reported that as a result of this impact, they can no longer access Teams channels due to the icon not being present in the left panel.

Current status: The service provider's log review has further identified that impact occurs when the code calls to the storage providing historical information and receives an invalid response. They're continuing to investigate why this invalid response is returned to determine potential remediation options. https://status.dal.ca/service.php?Service=39 2025-08-22 10:54:34 TEAMS NOTICE
A small number of users' Teams app may intermittently crash during calls or meetings on some iPad devices
Service Restored

Final status: The service provider has completed re-enabling the multi-window support feature in Teams for all previously affected users, and they've monitored their service health telemetry to confirm that the errors leading to crashes are resolved and the impact is remediated.

Start time: Sunday, May 12, 2024, at 7:00 PM AST
End time: Wednesday, August 20, 2025, at 3:00 PM AST https://status.dal.ca/service.php?Service=25 2025-08-21 15:06:41 Dalspace logins are working again https://status.dal.ca/service.php?Service=25 2025-08-21 11:44:57 Dalspace is experiencing login/connection errors. https://status.dal.ca/service.php?Service=36 2025-08-21 10:08:25 CHANGE CONTROL COMPLETION NOTICE
Service Restored

Customer: ACORN NS

Change Control ID : 2027551

Start Date: 2025-08-21
End Date: 2025-08-21

Location Of Work: Halifax, NS

Reason For Work: Engineering Project

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

Affected Circuits:
00118531 - ACORN NS - Universite Sainte-Anne - acorn-bilby-1 <> 1695 Route 1, Church Point, NS
00118537 - ACORN NS Yarmouth Hospital - acorn-bilby-1 <> 60 Vancouver St, Yarmouth, NS
00118533 - ACORN NS South Shore Reg Hosp - acorn-bilby-1 <> 90 Glen Allan, Bridgewater, NS https://status.dal.ca/service.php?Service=6 2025-08-21 10:16:50 EXCHANGE NOTICE
Some users were unable to create or access public folders through the Outlook desktop client and Outlook on the web
Service Restored

More info: Some users were also reporting failures when attempting to delete public folder subfolders and are experiencing public folder permission delays.
Final status: The service provider has reverted the offending change and confirmed after monitoring service telemetry, that impact has been remediated.

Start time: Wednesday, August 13, 2025, at 9:00 PM AST
End time: Wednesday, August 20, 2025, at 5:00 PM AST https://status.dal.ca/service.php?Service=38 2025-08-21 09:59:25 M365 NOTICE
Some users may be unable to access Office.com
Service Restored

More info: Additionally, users may have been unable to access m365.cloud.microsoft, which may have impacted Copilot access (https://m365.cloud.microsoft/chat). Users were still able to access Copilot through alternate methods, such as:
- Copilot app
- M365 apps (including Teams and Office Apps)
Final status: The service provider has completed the reversion of the configuration changes and rolled back to a previous client build for the impacted infrastructure. After a period of monitoring both internal and external signals, they’ve confirmed that service availability has recovered, and impact is remediated. Users still receiving the error message should refresh their browser.
Scope of impact: This issue was limited to some organizations hosted within a specific section of affected infrastructure within the North America region.
Start time: Wednesday, August 20, 2025, at 10:12 AM AST
End time: Wednesday, August 20, 2025, at 2:28 PM AST https://status.dal.ca/service.php?Service=21 2025-08-21 08:16:47 Microsoft reported and resolved an issue where users may have been unable to open folders or add documents using the Document Library web part in SharePoint Online. https://status.dal.ca/service.php?Service=43 2025-08-21 08:15:47 Active:
-- Power BI/Fabric: Users can't create private links and may be unable to access the Microsoft Fabric portal.


Resolved:
-- Power BI: Users may have been unable to create datasets with Dataflow connectors using the August 2025 version of Power BI Desktop. https://status.dal.ca/service.php?Service=36 2025-07-22 15:43:51 CHANGE CONTROL NOTICE

Type Of Work: Maintenance

Customer: ACORN NS

Change Control ID : 2027551

Start Date (yyyy-mm-dd): 2025-08-21
End Date (yyyy-mm-dd): 2025-08-21

Location Of Work: Halifax, NS

Reason For Work: Engineering Project

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

Affected Circuits:
00118531 - ACORN NS - Universite Sainte-Anne - acorn-bilby-1 <> 1695 Route 1, Church Point, NS
00118537 - ACORN NS Yarmouth Hospital - acorn-bilby-1 <> 60 Vancouver St, Yarmouth, NS
00118533 - ACORN NS South Shore Reg Hosp - acorn-bilby-1 <> 90 Glen Allan, Bridgewater, NS

Service Interruption Duration: 3 hours

Service Impact:
Your services will be impacted while we do a hardware upgrade. https://status.dal.ca/service.php?Service=38 2025-08-20 10:51:35 M365 NOTICE
Some users may be unable to sign into M365
Service Degradation

The service provider is reviewing service monitoring telemetry to isolate the root cause and develop a remediation plan. https://status.dal.ca/service.php?Service=38 2025-08-20 09:18:02 M365 NOTICE
Users may be intermittently unable to access documents hosted in China using M365 for the web
Service Restored

Final status: The service provider's investigation indicates that the components of M365 for the web infrastructure responsible for facilitating document access in the impacted regions encountered an error that prevented access to the affected documents, leading to impact. While they were in the process of analyzing these components to isolate the origin of this error, their system monitoring indicated that the service had returned to normal health. They've confirmed that the issue is no longer occurring, and they'll continue to monitor the service to ensure that the problem doesn't happen again.
Scope of impact: Any user accessing documents hosted in China using Microsoft 365 for the web may have been intermittently impacted.
Start time: Tuesday, August 19, 2025, at 1:35 PM AST
End time: Tuesday, August 19, 2025, at 2:50 PM AST https://status.dal.ca/service.php?Service=6 2025-08-20 09:12:33 EXCHANGE NOTICE
Some users can't create or access public folders through the Outlook desktop client and Outlook on the web
Service Degradation

More info: Some users are also reporting failures when attempting to delete public folder subfolders, and are experiencing public folder permission delays.
Current status: The service provider is continuing to collect HTTP Archive format (HAR) logs from representatives to effectively troubleshoot the problem and isolate the root cause of impact. https://status.dal.ca/service.php?Service=6 2025-08-20 09:13:58 EXCHANGE NOTICE
Users may have been unable to open the new Outlook desktop client app on Windows devices
Service Restored

More info: As a workaround, affected users could’ve used the Outlook classic desktop client.
Final status: The service provider has successfully reverted the service to the last known healthy build to remediate the impact and confirmed from telemetry that this issue is no longer occurring.
Scope of impact: Approximately five percent of users attempting to open the new Outlook desktop client on Windows devices may have been impacted.
Start time: Monday, August 18, 2025, at 7:00 PM AST
End time: Tuesday, August 19, 2025, at 2:17 PM AST https://status.dal.ca/service.php?Service=36 2025-08-20 09:12:00 CHANGE CONTROL COMPLETION NOTICE
Service Restored

Customer: Canary NOC

Change Control ID : 2085129

Start Date: 2025-08-20
End Date: 2025-08-20

Location Of Work: Burgeo - NL

Reason For Work: Transport Repair

Release Window (24 hr format): 00:00 - 02:00 Newfoundland

Affected Circuits:
00152705 - Fundy Web Canarie 10Gig - 228 Elizabeth Ave, St John's, NL <> 6225 University Ave, Halifax, NS https://status.dal.ca/service.php?Service=36 2025-08-18 11:08:40 EMERGENCY CHANGE CONTROL NOTICE
Type Of Work: Emergency

Customer: Canary NOC

Change Control ID : 2085129

Start Date (yyyy-mm-dd): 2025-08-20
End Date (yyyy-mm-dd): 2025-08-20

Location Of Work: Burgeo - NL

Reason For Work: Transport Repair

Release Window (24 hr format): 00:00 - 02:00 Newfoundland

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

Service Interruption Duration: less than 30 minute

Service Impact:
Your services will be impacted while we perform an Emergency Card swap on our Transport system. https://status.dal.ca/service.php?Service=38 2025-08-19 15:42:18 M365 NOTICE
Users may be intermittently unable to access documents hosted in China using M365 for the web
Service Degradation

Current status: The service provider is investigating the components of M365 for the web infrastructure responsible for facilitating document access in the impacted regions to direct their next troubleshooting steps https://status.dal.ca/service.php?Service=43 2025-08-19 08:04:57 Power BI:
Users may be unable to create datasets with Dataflow connectors using the August 2025 version of Power BI Desktop. As a workaround, users may be able to use the July 2025 or another previous version of Power BI Desktop to avoid the impact. https://status.dal.ca/service.php?Service=6 2025-08-18 09:42:23 EXCHANGE NOTICE
Some users are unable to save rules and bindings to existing Data Loss Prevention (DLP) policies in Exchange Online
Service Restored

Final status: The service provider has determined that a recent service optimization intended to reduce dependency on Active Directory (AD) caused a code issue. Subsequently, they’ve developed and deployed a targeted code change to reenable the dependency on AD as a long-term remediation plan, and confirmed after monitoring the service health telemetry that impact no longer persists.
Start time: Monday, August 11, 2025, at 4:00 AM AST
End time: Saturday, August 16, 2025, at 12:00 AM AST https://status.dal.ca/service.php?Service=9 2025-08-14 12:57:38 We will be patching all Nexus switches to remediate security vulnerabilities and upgrade them to the latest stable and supported software versions.

The upgrade is planned in three stages:
Sunday, Aug 17 – 5:00 AM to 8:00 AM
Wednesday, Aug 20 – 5:00 AM to 8:00 AM
Sunday, Aug 24 – 5:00 AM to 8:00 AM

During each maintenance window, intermittent network outages may occur while switches are upgraded. All services will be restored as quickly as possible. https://status.dal.ca/service.php?Service=39 2025-08-15 09:16:00 TEAMS NOTICE
Users may not be presented a microphone option to mute or unmute in Teams meeting breakout rooms
Service Restored

More info: Impact was specific to breakout room attendees. Meeting organizers weren't impacted.
While the service provider was focused on remediation, their testing indicated that users may have been able to avoid impact by utilizing Teams on the web as opposed to the Teams desktop client.

Final status: the service provider has validated that their deployment has completed for the affected environment, and they've confirmed users are now presented with a microphone option to mute in Teams breakout rooms as expected.

Start time: Tuesday, August 5, 2025, at 5:06 AM AST
End time: Thursday, August 14, 2025, at 7:19 PM AST https://status.dal.ca/service.php?Service=38 2025-08-15 09:09:38 M365 NOTICE
Some users can't open, or see delays with, premium plans in Planner or projects in Project for Web
Service Restored

User impact: Users couldn't open, or saw delays with, premium plans in Planner or projects in Project for Web.
Final status: The service provider has completed restarting the affected infrastructure and confirmed impact was successfully remediated.

Start time: Thursday, August 14, 2025, at 11:00 AM AST
End time: Thursday, August 14, 2025, at 4:45 PM AST https://status.dal.ca/service.php?Service=6 2025-08-14 15:37:09 EXCHANGE NOTICE
Users may be unable to open or preview PDF attachments in the new Outlook desktop experience and Outlook on the web
Service Restored

More info: Impact manifested when previewing and downloading the PDF file. Some users may have seen an error message in Outlook that stated, "Something went wrong while the document preview was being created. Please try again later," or an error message when the attachment was attempting to open through Edge that stated, "We couldn't open this file. Something went wrong." Users could avoid this issue by accessing the PDF files through the classic Outlook desktop experience.

Final status: The service provider's deployment of the fix to bypass the offline caching of attachments is complete, and they've monitored their service health telemetry to confirm that the impact is remediated.

Start time: Sunday, July 20, 2025, at 9:00 PM AST
End time: Tuesday, August 12, 2025, at 2:30 PM AST https://status.dal.ca/service.php?Service=39 2025-08-14 09:30:08 TEAMS NOTICE
Users may not be presented a microphone option to mute or unmute in Teams meeting breakout rooms
Service Degradation

More info: Impact is specific to breakout room attendees. Meeting organizers are not impacted.
While the service provider is focused on remediation, their testing indicates users may be able to avoid impact by utilizing Teams on the web as opposed to the Teams desktop client.
Current status: The service provider has identified a recent service update, designed to change the way that the mute state is communicated to the service, that's causing impact. They're reviewing their options to determine the most efficient method to remediate the impact. https://status.dal.ca/service.php?Service=38 2025-08-14 09:29:04 ONENOTE NOTICE
Users may be unable to open certain links in the OneNote desktop app and get an error
Service Restored

More info: Affected users received the following error: "Your administrator has blocked your ability to open this file type in OneNote."
As a workaround, users could copy the affected link and paste it directly into File Explorer to access the link.
Final status: The service provider has completed deploying the fix to resolve the code regression leading to impact, and they've monitored their service health telemetry to confirm that access to the affected links is restored and impact is remediated.

Start time: Monday, July 7, 2025, at 9:00 PM AST
End time: Tuesday, August 12, 2025, at 9:00 PM AST https://status.dal.ca/service.php?Service=36 2025-08-14 09:25:37 CHANGE CONTROL NOTICE
Service Restored

Customer: ACORN NS

Change Control ID : 2067122

Start Date: 2025-08-14
End Date: 2025-08-14

Location Of Work: Heatherton, NS

Reason For Work: OSP Forced Relocate

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

Affected Circuits:
00142075 - ACORN NS - acorn-nwgl-1 Twe1/0/23 <> acorn-sydn-1 Twe1/0/24 https://status.dal.ca/service.php?Service=39 2025-08-14 09:31:51 TEAMS NOTICE
Users may have been unable to download their Teams meeting recordings
Service Restored

More info: Users were unable to download their meetings due to a download button being unavailable to them. However, the meeting was still being stored and available.
Final status: The service provider has successfully deployed the fix and new meeting recordings from Wednesday, August 6, 2025 will successfully download without any additional steps needed. However, for recordings prior to the aforementioned date, users will need to click the "retry upload" button to download the recordings.
Start time: Friday, July 11, 2025, at 8:40 AM AST
End time: Wednesday, August 6, 2025, at 12:00 AM AST https://status.dal.ca/service.php?Service=9 2025-08-14 07:27:46 There is a planned power maintenance happening in Killiam First floor affecting mail receiving area of the floor. This has taken down the network device temporarily.

Technicians are aware and waiting for the planned work to be complete.

Work has been completed and power has been restored. https://status.dal.ca/service.php?Service=36 2025-07-31 09:08:33 CHANGE CONTROL NOTICE
Type Of Work: Project

Customer: ACORN NS

Change Control ID : 2067122

Start Date (yyyy-mm-dd): 2025-08-14
End Date (yyyy-mm-dd): 2025-08-14

Location Of Work: Heatherton, NS

Reason For Work: OSP Forced Relocate

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

Affected Circuits:
00142075 - ACORN NS - acorn-nwgl-1 Twe1/0/23 <> acorn-sydn-1 Twe1/0/24

Service Interruption Duration: 3 hours

Service Impact:
Your services will be impacted while we do a forced fibre relocate. https://status.dal.ca/service.php?Service=39 2025-08-11 09:21:45 TEAMS NOTICE
Users may be unable to open OneNote pages in Teams channels when selecting the OneNote tab
Service Restored

More info: To bypass this issue, affected users may have been able to utilize the OneNote app directly or access the content via the file's direct URL. Affected users may have also seen the following error message when attempting to open OneNote tabs in Teams:
"There was a problem reaching this app".

Final status: The service provider has validated in service health telemetry that their actions to complete a reversion to a version of the service that was previously completing this action have successfully alleviated this issue.

Start time: Thursday, August 7, 2025, at 4:00 PM AST
End time: Sunday, August 10, 2025, at 12:15 AM AST https://status.dal.ca/service.php?Service=6 2025-08-08 15:32:35 EXCHANGE NOTICE
Users may be unable to open or preview PDF attachments in the new Outlook desktop experience
Service Degradation

More info: Impact can manifest when previewing and downloading the PDF file. Some users may see a "Something went wrong while the document preview was being created. Please try again later." error message in Outlook, or a "We can't open this file. Something went wrong." error message when the attachment is attempting to open through Edge. Users can avoid this issue by accessing the PDF files through the classic Outlook desktop experience.
Current status: The service provider received reports of an issue where users on the New Outlook desktop experience may be unable to open PDF attachments. They confirmed that some portions of a recent service update, intended to implement a new PDF viewer, aren't compatible with the offline caching of attachments. They've developed a fix to bypass this caching and initiated the deployment to resolve this issue. https://status.dal.ca/service.php?Service=38 2025-08-08 09:37:10 M365 NOTICE
Copilot Readiness and M365 apps reports from July 31, 2025, onward may have been unavailable.
Service Restored

Final status: the service provider has determined that a portion of service storage had dropped below their manageable service performance thresholds, blocking the expected data flow between their services and prevented data from July 31, 2025, onwards from flowing from the data source for Copilot Readiness and M365 apps reports. After addressing the offending data flow, their internal service telemetry has verified that impact has been remediated.
Scope of impact: Any user or admin attempting to generate Copilot Readiness or M365 apps reports that included data from July 31, 2025, or later may have been impacted.
Start time: Thursday, July 31, 2025, at 9:00 PM AST
End time: Thursday, August 7, 2025, at 5:00 PM AST https://status.dal.ca/service.php?Service=39 2025-08-07 15:59:33 TEAMS NOTICE
Some users may encounter issues using the new Teams transfer experience
Service Restored

More info: Specifically, affected users may have been unable to see presence status or transfer calls from contact records using the new Teams transfer experience.
Additionally, affected users were unable to view the presence status of transfer targets and may have also been unable to transfer calls from contact records when using the new transfer experience in the Microsoft Teams desktop client.
Final status: The service provider monitored the deployment of their fix to the impacted service environment and confirmed that it completed successfully and impact has now been fully remediated.

Start time: Monday, June 30, 2025, at 9:00 PM UTC
End time: Wednesday, August 6, 2025, at 7:27 PM AST https://status.dal.ca/service.php?Service=36 2025-08-07 10:01:33 COMPLETION NOTICE

Customer: Canary NOC
Start Date: 2025-08-07
End Date: 2025-08-07
Location Of Work: Rose Blanche - NL

Reason For Work: Network Testing/Maintenance

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

Affected Circuits:
00152705 - Fundy Web Canarie 10Gig - 228 Elizabeth Ave, St John's, NL <> 6225 University Ave, Halifax, NS https://status.dal.ca/service.php?Service=36 2025-08-07 09:59:39 COMPLETION NOTICE

Change Control ID : 2049371

Start Date: 2025-08-07
End Date: 2025-08-07
Location Of Work: Halifax, NS
Reason For Work: Engineering Project
Release Window (24 hr format): 00:00 - 06:00 Atlantic

Affected Circuits:
00145606 - Killam Library - 5657 Spring Garden Rd (705), Halifax, NS <> 6225 University Ave, Halifax, NS https://status.dal.ca/service.php?Service=36 2025-07-08 09:38:23 Eastlink New Change Control Notice


Type Of Work: Maintenance

Customer: Dalhousie

Change Control ID : 2049371

Start Date (yyyy-mm-dd): 2025-08-07

End Date (yyyy-mm-dd): 2025-08-07

Country: Canada

Location Of Work: Halifax, NS

Reason For Work: Engineering Project

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

Affected Circuits:
00145606 - Killam Library - 5657 Spring Garden Rd (705), Halifax, NS <> 6225 University Ave, Halifax, 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=36 2025-07-11 15:18:54 Eastlink New Change Control Notice


Type Of Work: Maintenance

Customer: Canary NOC

Change Control ID : 2057628

Start Date (yyyy-mm-dd): 2025-08-07

End Date (yyyy-mm-dd): 2025-08-07

Country: Canada

Location Of Work: Rose Blanche - NL

Reason For Work: Network Testing/Maintenance

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

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

Service Interruption Duration: less than 1 hour

Service Impact:
Your services will be impacted while we replace a failing line card. https://status.dal.ca/service.php?Service=6 2025-08-06 10:54:54 EXCHANGE NOTICE
Users may experience intermittent failures when accessing their Exchange Online mailbox through any connection method
Service Restored

Final status: The service provider identified that a portion of infrastructure responsible for routing requests to access Exchange Online mailboxes was performing below the expected service threshold. They rerouted connections to alternate infrastructure and monitored the environment to validate that service was restored.
Scope of impact: This issue may have intermittently impacted any user located in Canada attempting to access to their Exchange Online mailbox through any connection method.
Start time: Friday, August 1, 2025, at 7:20 PM AST
End time: Saturday, August 2, 2025, at 9:58 AM AST https://status.dal.ca/service.php?Service=39 2025-08-05 09:44:45 TEAMS NOTICE
Some users may encounter issues using the new Teams transfer experience
Service Degradation

More info: Specifically, affected users may be unable to see presence status or transfer calls from contact records using the new Teams transfer experience.
Additionally, affected users are unable to view the presence status of transfer targets and may also be unable to transfer calls from contact records when using the new transfer experience in the Teams desktop client.
Current status: The service provider has identified the impact persists. Specifically, they've completed deploying the fix to a subset of users who initially reported the issue, and received confirmation that it resolves the underlying issue. They're now preparing to deploy the fix to the impacted environment and anticipate the deployment will be complete and the impact will be remediated. Users will begin to experience remediation incrementally as the deployment progresses through the impacted environment. https://status.dal.ca/service.php?Service=9 2025-08-03 08:11:09 Replacement successfully completed. https://status.dal.ca/service.php?Service=9 2025-07-28 12:32:58 The replacement of the internet routers is planned for Sunday August 3rd, 5:00am to 10:00m.
During this window, internet services will be disrupted intermittently.
Services will be fully restored when the replacement is completed. https://status.dal.ca/service.php?Service=36 2025-08-01 09:34:08 EMERGENCY CHANGE CONTROL NOTICE
Service Restored

Type Of Work: Emergency
Customer: ACORN NS
Change Control ID : 2075105
Start Date (yyyy-mm-dd): 2025-08-01
End Date (yyyy-mm-dd): 2025-08-01
Location Of Work: Shelburne - NS
Reason For Work: Damaged Fiber Cables

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

Affected Circuits:
00141795 - 10G Acorn YT to Yarmouth

Service Interruption Duration: 6 hours

Service Impact:
Your services will be impacted while we perform Emergency Repairs to Damaged Fiber Cables https://status.dal.ca/service.php?Service=6 2025-07-30 09:06:24 EXCHANGE NOTICE
Some users may be unable to access their mailboxes in Exchange Online through multiple connection methods
Service Restored

More info: Impacted connection methods included:
- Outlook on the web
- Messaging API (MAPI)
- Exchange ActiveSync (EAS)
Final status: The service provider has disabled the process associated with retrieving directory information for mailboxes to help the queues drain and allow the service infrastructure to recover. They’ve monitored the affected environment where they observed errors significantly decreased and have confirmed that the service availability has recovered.
Scope of impact: This issue may have affected some users hosted in the Canada region who attempted to access their mailboxes through the impacted connection methods.
Start time: Tuesday, July 29, 2025, at 5:21 PM AST
End time: Wednesday, July 30, 2025, at 9:42 AM AST https://status.dal.ca/service.php?Service=36 2025-07-30 08:56:14 CHANGE CONTROL NOTICE
Service Restored

Customer: ACORN NS
Change Control ID : 2054601
Start Date: 2025-07-30
End Date: 2025-07-30
Location Of Work: Yarmouth - NS
Reason For Work: Engineering Project
Release Window (24 hr format): 00:00 - 05:00 Atlantic
Affected Circuits:
00118531 - Universite Sainte-Anne - 1695 Route 1, Church Point, NS
00118537 - Yarmouth Hospital - 60 Vancouver St, Yarmouth, NS https://status.dal.ca/service.php?Service=36 2025-07-07 11:24:18 Eastlink New Change Control Notice


Type Of Work: Project

Customer: ACORN NS

Change Control ID : 2054601

Start Date (yyyy-mm-dd): 2025-07-30

End Date (yyyy-mm-dd): 2025-07-30

Country: Canada

Location Of Work: Yarmouth - NS

Reason For Work: Engineering Project

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

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

Service Interruption Duration: 3 hours

Service Impact:
Your services will be impacted while we do a hardware upgrade. https://status.dal.ca/service.php?Service=39 2025-07-29 09:12:06 TEAMS NOTICE
Some users may see SharePoint Online or OneNote links pasted into Teams formatted as a URL instead of a link
Service Degradation

More info: Users can reformat pasted SharePoint Online or OneNote links using ctrl + z.
Pasted links will still direct users to the correct SharePoint Online or OneNote page.
Current status: The service provider has verified that a recent update introduced to change how SharePoint Online and OneNote links are processed may be resulting in impact. They’re analyzing the update to verify if this is the root cause of impact and to determine their next troubleshooting steps. https://status.dal.ca/service.php?Service=39 2025-07-29 09:13:38 TEAMS NOTICE
Some users get an erroneous error when creating teams from an existing group within Teams
Service Restored

More info: Teams creation from an existing group was successful despite an error indicating “We ran into an error creating your team” being generated.
Final status: The service provider has completed the deployment of their fix to the affected environment and confirmed after testing that impact was successfully resolved.

Start time: Sunday, June 22, 2025, at 9:00 PM AST
End time: Wednesday, July 23, 2025, at 4:26 PM AST https://status.dal.ca/service.php?Service=39 2025-07-28 14:29:50 TEAMS NOTICE
Some users may encounter issues using the new Teams transfer experience
Service Restored

More info: Specifically, affected users may have been unable to see presence status or transfer calls from contact records using the new Teams transfer experience.
Additionally, affected users may have been unable to view the presence status of transfer targets and may have also been unable to transfer calls from contact records when using the new transfer experience in the Teams desktop client.

Final status: The service provider has completed the fix deployment and validated the fix has remediated this issue.

Start time: Thursday, May 1, 2025, at 9:00 AM AST
End time: Saturday, July 26, 2025, at 2:00 AM AST https://status.dal.ca/service.php?Service=36 2025-07-25 08:53:58 CHANGE CONTROL NOTICE
Type Of Work: Maintenance
Customer: Canary NOC
Change Control ID : 2055508
Start Date (yyyy-mm-dd): 2025-07-25
End Date (yyyy-mm-dd): 2025-07-25

Service Restored https://status.dal.ca/service.php?Service=36 2025-07-04 15:56:41 CHANGE CONTROL NOTICE

Type Of Work: Maintenance

Customer: Canary NOC

Change Control ID : 2055508

Start Date (yyyy-mm-dd): 2025-07-25

End Date (yyyy-mm-dd): 2025-07-25

Country: Canada

Location Of Work: Marystown - NL

Reason For Work: Network Testing/Maintenance

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

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

Service Interruption Duration: 3 hours

Service Impact:
Your services will be impacted during DWDM Transport troubleshooting https://status.dal.ca/service.php?Service=39 2025-07-24 13:50:34 TEAMS NOTICE
Users may be unable to reorder or delete members within schedule groups in the Shifts app within Teams
Service Restored

Final status: The service provider has completed the deployment of their fix and confirmed after monitoring service health telemetry that previously observed failures have ceased, remediating impact for all users.
Scope of impact: Any user may have been unable to reorder or delete members within schedule groups in the Shifts app within Teams.
Start time: Friday, July 18, 2025, at 6:00 PM AST
End time: Thursday, July 24, 2025, at 1:17 AM AST
Root cause: A recent update to the service contained a code issue that affected the ability to reorder or delete members within schedule groups. https://status.dal.ca/service.php?Service=39 2025-07-24 10:13:10 TEAMS NOTICE
Users may be unable to reorder or delete members within schedule groups in the Shifts app within Teams
Service Degradation

Current status: The service provider has received reports of an issue impacting the Shifts app within Teams. After investigating the impact, they identified a recent update to the service contained a code issue that affects the ability to reorder or delete members within schedule groups. They've developed a fix for this issue and are in the process of deploying it now to remediate impact.
Scope of impact: Any user may be impacted by this event and unable to reorder or delete members within schedule groups in the Shifts app within Teams. https://status.dal.ca/service.php?Service=6 2025-07-24 09:46:59 EXCHANGE NOTICE
Some users may be unable to access specific archive mailboxes
Service Degradation

More info: Specifically, some users are unable to access the archive mailbox when the primary mailbox is located in a different Active Directory forest from the archive mailbox.
Current status: The service provider has completed developing the previously mentioned change to the way the user cache is generated upon loading the affected mailboxes, and they’re validating the change for efficacy before beginning deployment to the impacted environment. https://status.dal.ca/service.php?Service=6 2025-07-24 10:10:43 EXCHANGE NOTICE
Some users may be unable to receive a confirmation response in Exchange Online
Service Restored

More info: Specifically, impacted users may have been unable to receive a confirmation response when Workspace Reservations and Meetings were created.
Final status: The service provider has completed their investigation and determined that automation can't be used to process past confirmation responses. They’ll be publishing a message in the “Issues for your organization to act on” section with steps that can be taken to process past confirmation responses. Regarding new confirmation responses, they’ve validated that their code fix has successfully addressed the problem and restored newly created Workspace Reservations and Meeting confirmations.

Start time: Saturday, July 12, 2025, at 12:53 PM AST
End time: Wednesday, July 23, 2025, at 1:51 PM AST

Root cause: A recent code fix to resolve an unrelated issue introduced a compatibility issue between code that prevented Workspace Reservations and Meetings from processing creations and populating the confirmation reply. https://status.dal.ca/service.php?Service=9 2025-07-24 09:27:29 Change Control Completion Notice
Customer: Dalhousie
Change Control ID : 2035089
Start Date: 2025-07-24
End Date: 2025-07-24

Service Restored https://status.dal.ca/service.php?Service=36 2025-07-24 09:24:39 CHANGE CONTROL NOTICE
Type Of Work: Maintenance
Customer: ACORN NS
Change Control ID : 2035089

Service Restored https://status.dal.ca/service.php?Service=36 2025-06-24 09:48:12 CHANGE CONTROL NOTICE
Type Of Work: Maintenance

Customer: ACORN NS

Change Control ID : 2035089

Start Date (yyyy-mm-dd): 2025-07-24

End Date (yyyy-mm-dd): 2025-07-24

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 St, Halifax, NS
00117119 - Management and monitoring for ACORN - 6080 Young St, Halifax, NS

Service Interruption Duration: 6 hours

Service Impact:
Your services will be impacted while we do a software upgrade. https://status.dal.ca/service.php?Service=9 2025-06-24 09:49:50 CHANGE CONTROL NOTICE

Type Of Work: Maintenance

Customer: Dalhousie

Change Control ID : 2035089

Start Date (yyyy-mm-dd): 2025-07-24

End Date (yyyy-mm-dd): 2025-07-24

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 St, Halifax, NS
00144384 - DAL MS Teams - 6080 Young St, Halifax, NS
00144385 - DAL MS Teams - 6080 Young St, Halifax, NS
00144386 - DAL MS Teams - 6080 Young St, Halifax, NS

Service Interruption Duration: 6 hours

Service Impact:
Your services will be impacted while we do a software upgrade. https://status.dal.ca/service.php?Service=39 2025-07-23 15:41:34 TEAMS NOTICE
Users may have been unable to join or create Teams meetings.
Service Restored

Final status: After a period of monitoring meeting join and creation telemetry, the service provider has confirmed optimizing performance parameters on the affected section of infrastructure has resolved the issue.
Scope of impact: Impact was specific to some users attempting to join or create meetings.
Start time: Wednesday, July 23, 2025, at 4:05 AM AST
End time: Wednesday, July 23, 2025, at 10:20 AM AST
Root cause: A section of infrastructure, responsible for facilitating meeting join and creation requests, was performing below acceptable performance thresholds, which caused impact. https://status.dal.ca/service.php?Service=39 2025-07-23 11:11:45 TEAMS NOTICE
Some users in Europe, Middle East, and Africa may be unable to join or create Teams meetings
Service Degradation

Current status: The service provider is seeing recovery in their service monitoring telemetry so users may now no longer face issues joining or creating meetings. However, they're continuing their analysis of system logs to identify the root cause. https://status.dal.ca/service.php?Service=6 2025-07-23 11:07:16 EXCHANGE NOTICE
Some users may have seen an unexpected "[EXTERNAL]" tag appended to the subject line of some incoming email messages
Service Restored

Final status: The service provider has discovered that a recent update intended to enhance their anti-spam filtration process inadvertently caused impact. They've since reverted the update and confirmed through service telemetry and feedback from affected users that the issue has been resolved.
Start time: Tuesday, July 22, 2025, at 7:00 PM AST
End time: Wednesday, July 23, 2025, at 5:15 AM AST https://status.dal.ca/service.php?Service=39 2025-07-23 10:58:59 TEAMS NOTICE
Some users may have seen intermittent failures with voice applications in Teams
Service Restored

Final status: The service provider has rerouted additional affected traffic and confirmed after a period of monitoring that all impact has been remediated.
Scope of impact: This issue may have intermittently impacted any user utilizing voice applications in Teams.
Start time: Tuesday, July 22, 2025, at 11:05 PM AST
End time: Wednesday, July 23, 2025, at 8:00 AM AST https://status.dal.ca/service.php?Service=39 2025-07-23 10:53:02 TEAMS NOTICE
Some attendees may be unable to join town halls in Teams if they were invited through a distribution list
Service Restored

More info: The issue was specific to town hall meetings with Event access set to "People and Groups".
Final status: The service provider has completed reverting to the last known good build and validated with internal telemetry that the issue is resolved.
Start time: Monday, July 21, 2025, at 7:40 PM AST
End time: Wednesday, July 23, 2025, at 2:09 AM AST https://status.dal.ca/service.php?Service=43 2025-07-23 08:12:09 Microsoft reported and resolved an issue on July 22/25 where users received the following error message when triggering Microsoft Power Automate flows in Microsoft Power Apps:

"The request failed with client error: 'Input parameters were invalid.'"

Users are advised to review their apps and flows to determine if they were impacted. https://status.dal.ca/service.php?Service=36 2025-07-22 10:35:58 Service Restored https://status.dal.ca/service.php?Service=36 2025-07-04 09:23:02 CHANGE CONTROL NOTICE

Type Of Work: Project

Customer: ACORN NS

Change Control ID : 2053598

Start Date (yyyy-mm-dd): 2025-07-22

End Date (yyyy-mm-dd): 2025-07-22

Location Of Work: James River - NS

Reason For Work: OSP Forced Relocate

Release Window (24 hr format): 00:01 - 05:00 Atlantic

Affected Circuits:
00142075 - acorn-nwgl-1 Twe1/0/23 <> acorn-sydn-1 Twe1/0/24
00119760 - acorn-nwgl-1 Twe1/0/4 to St. Martha's Hospital - 25 Bay St, Antigonish, NS

Service Interruption Duration: 2 hours

Service Impact:
Your services will be impacted while we do a forced fibre relocate. https://status.dal.ca/service.php?Service=21 2025-07-21 08:29:19 Resolved:

Users may have been unable to add or remove images as banners for events within the myDal/SharePoint event web part. https://status.dal.ca/service.php?Service=21 2025-07-18 17:25:24 Active:

1) Users may be unable to add or remove images as banners for events within the myDal/SharePoint event web part. https://status.dal.ca/service.php?Service=21 2025-07-18 12:56:24 Active:

1) Users may be unable to add or remove images as banners for events within the myDal/SharePoint event web part.

2) Users may be unable to leverage the Immersive Reader feature. https://status.dal.ca/service.php?Service=39 2025-07-18 08:57:15 Status
Service Degradation
TM1116493


Details

Title: Users can't see presence status or transfer calls from contact records using the new Teams transfer experience

User impact: Users can't see presence status or transfer calls from contact records using the new Teams transfer experience

More info: Affected users are unable to view the presence status of transfer targets and may also be unable to transfer calls from contact records when using the new transfer experience in the Microsoft Teams desktop client.

Current status: We’ve completed validating the previously mentioned code fix, and we’re preparing to initiate deployment to the impacted service environment. We’ll provide a timeline for full deployment and remediation as it becomes available.
Scope of impact: Users may be unable to view presence status or transfer calls from contact records when using the new Teams desktop transfer experience.

Start time: Tuesday, July 1, 2025, at 12:00 AM UTC

Root cause: A recent change intended to enhance the transfer menu with Intelligent Call Context and Topic features resulted in a regression in the Teams desktop client, causing presence status to no longer display for transfer targets and preventing call transfers from contact records.

Next update by: Tuesday, July 22, 2025, at 1:30 AM UTC https://status.dal.ca/service.php?Service=36 2025-07-14 14:56:34 CHANGE CONTROL NOTICE

Type Of Work: Project

Customer: ACORN NS

Change Control ID : 2056945

Start Date (yyyy-mm-dd): 2025-07-18
End Date (yyyy-mm-dd): 2025-07-18

Location Of Work: Halifax, NS

Reason For Work: Node Split

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

Affected Circuits:
00154283 - 84 Chain Lake Drive, Halifax, NS <> 233 Sambro Creek Rd,room 137, Sambro Creek, NS

Service Interruption Duration: Network Threat - NonService Affecting

Service Impact:
Your services will be under threat while we do dark fibre splicing. https://status.dal.ca/service.php?Service=36 2025-07-18 08:36:08 Eastlink Change Control Completion Notice


Customer: ACORN NS

Change Control ID : 2056945

Start Date: 2025-07-18

End Date: 2025-07-18

Country: Canada

Location Of Work: Halifax, NS

Reason For Work: Node Split

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

Affected Circuits:
00154283 - 84 Chain Lake Drive, Halifax, NS <> 233 Sambro Creek Rd,room 137, Sambro Creek, NS

Service Impact: Your services will be under threat while we do dark fibre splicing. https://status.dal.ca/service.php?Service=21 2025-07-17 14:23:56 M365 NOTICE
Users may be unable to leverage the Immersive Reader feature in some M365 services
Service Degradation

More info: Impact may be seen in the following services:
- Outlook on the web
- Forms
- Teams desktop and mobile apps
- Reading Coach
- EDU Assignments
- Word Online
- PowerPoint Online
- Excel Online
- Office Lens
Current status: The service provider's monitoring systems identified an issue where users may be unable to leverage the Immersive Reader feature in some M365 services. Their investigation has determined that an update to authentication components coincided with an Immersive Reader feature update, which is resulting in an outdated authentication call and subsequently causing the service to deny authentication requests. They're correcting the feature update to utilize the updated authentication method to resolve the issue. https://status.dal.ca/service.php?Service=37 2025-07-17 08:35:13 Ticket ID: 21077 (Maintenance - Scheduled - Critical)
Start Date: Jul 16, 2025 09:00 PM AST
End Date: Jul 17, 2025 08:00 AM AST
Service Restored https://status.dal.ca/service.php?Service=37 2025-07-16 10:11:45 Ticket ID: 21077 (Maintenance - Scheduled - Critical)
Start Date: Jul 16, 2025 09:00 PM AST
End Date: Jul 17, 2025 08:00 AM AST
Cause: Upgrade - Software

Service Outage Details
During this event, users could have trouble using one of the specified services in the specified regions. Service interruptions may occur. Active PTT sessions may experience drops, new sessions can be initiated after 30 seconds. Any subscriber will face the above-described impact twice during the maintenance window.

Impacted Services
Push to Talk https://status.dal.ca/service.php?Service=6 2025-07-16 09:45:54 EXCHANGE NOTICE
Some users aren't receiving a confirmation in Exchange Online when Workspace Reservations and Meetings are created
Service Degradation

Current status: The service provider deployed a code fix to their internal testing environment and confirmed that it resolves the issue. They're now rolling out the fix to the affected environment. https://status.dal.ca/service.php?Service=6 2025-07-16 09:40:31 EXCHANGE NOTICE
Users may be unable to access their mailbox using any Exchange Online connection method
Service Restored

Final status: The service provider has completed their deployment and confirmed through extended monitoring that the underlying issue is fully resolved.
Scope of impact: Any user may have been impacted when attempting to access their mailbox using any Exchange Online connection method.
Start time: Thursday, July 10, 2025, at 4:00 PM AST
End time: Tuesday, July 15, 2025, at 1:30 AM AST https://status.dal.ca/service.php?Service=37 2025-07-16 10:13:31 Ticket ID: 21076 (Maintenance - Scheduled - Critical)
Start Date: Jul 15, 2025 09:00 PM AST
End Date: Jul 16, 2025 09:00 AM AST
Cause: Upgrade - Software

Service Restored https://status.dal.ca/service.php?Service=37 2025-07-14 11:18:51 Ticket ID: 21076 (Maintenance - Scheduled - Critical)
Start Date: Jul 15, 2025 09:00 PM AST
End Date: Jul 16, 2025 09:00 AM AST
Cause: Upgrade - Software

Service Outage Details
During this event, users could have trouble using one of the specified services in the specified regions. Service : interruptions may occur. Active PTT sessions may experience drops, new sessions can be initiated after 30 seconds. Any subscriber will face the above-described impact twice during the maintenance window.

Impacted Services
Push to Talk https://status.dal.ca/service.php?Service=39 2025-07-15 15:59:44 TEAMS NOTICE
Microsoft
Users may have seen an error when launching the Teams desktop client or web app
Service Restored

More info: When users launched the Teams desktop client or web app, they may have received an error stating: "There was a problem reaching this app."
Affected users may have been able to click the apps on the left sidebar to bypass the error.
Current status: After a period of monitoring service health subsequent to the deployment of the service provider's fix to the impacted environment, they’ve confirmed from telemetry that this issue is no longer occurring.
Start time: Wednesday, July 9, 2025, at 1:13 PM AST
End time: Tuesday, July 15, 2025, at 2:25 PM AST https://status.dal.ca/service.php?Service=43 2025-07-15 12:11:30 Resolved:

Users may have been unable to expand matrix visual rows with multiple selections in Power BI. https://status.dal.ca/service.php?Service=43 2025-07-15 08:49:31 Power BI:

Users are unable to expand matrix visual rows with multiple selections in Power BI. https://status.dal.ca/service.php?Service=38 2025-07-15 08:49:43 Microsoft OneNote:

Affected users attempting to open links to local or network folders in the OneNote desktop app get the following error: "Your administrator has blocked your ability to open this file type in OneNote."

As a workaround, users can copy the affected link and paste it directly into File Explorer to access the link.