https://status.dal.ca/ RSS feed of the Dalhousie Status Page updates. en-ca Fri, 22 May 2026 02:53:20 America/Halifax Copyright 2017 Dalhousie University. https://status.dal.ca/rss.php https://status.dal.ca/service.php?Service=8 2026-05-21 15:36:40 DetailsTitle: Admins may see stale or delayed report data in the 365 admin center

User impact: Admins may have seen stale or delayed report data in the 365 admin center.

More info: The affected reports for Monday, May 11, 2026, Tuesday, May 12, 2026, or Friday, May 15, 2026, included the following:

- Copilot Readiness Activity

- 365 App Usage

- Project Activity

- Visio Activity

Final status: We've confirmed that the data backlog has finished processing in all affected regions and has fully remediated impact for this issue.

Scope of impact: Any admin located in the North America, Asia-Pacific, and Europe regions who attempted to view-up-to-date report data for the listed reports in the More info section for Monday, May 11, 2026, Tuesday, May 12, 2026, or Friday, May 15, 2026, in the 365 admin center may have been impacted.

Start time: Friday, May 15, 2026, at 12:00 AM UTC

End time: Thursday, May 21, 2026, at 2:00 AM UTC https://status.dal.ca/service.php?Service=8 2026-05-21 15:19:16 DetailsTitle: Some users may encounter issues accessing features in the Planner application

User impact: Users may have encountered issues accessing features in the Planner application.

Final status: Service-side telemetry confirms the mitigation steps taken have been successful and restored access to the Planner application.

Scope of impact: Some users attempting to access features in the Planner app may have been impacted.



Start time: Thursday, May 21, 2026, at 7:25 AM UTC

End time: Thursday, May 21, 2026, at 5:17 PM UTC https://status.dal.ca/service.php?Service=8 2026-05-21 15:18:09 User impact: Admins may have seen stale or delayed report data in the 365 admin center.

More info: The affected reports for Monday, May 11, 2026, Tuesday, May 12, 2026, or Friday, May 15, 2026, included the following:

- Copilot Readiness Activity

- 365 App Usage

- Project Activity

- Visio Activity

Final status: We've confirmed that the data backlog has finished processing in all affected regions and has fully remediated impact for this issue.

Scope of impact: Any admin located in the North America, Asia-Pacific, and Europe regions who attempted to view-up-to-date report data for the listed reports in the More info section for Monday, May 11, 2026, Tuesday, May 12, 2026, or Friday, May 15, 2026, in the 365 admin center may have been impacted.

Start time: Friday, May 15, 2026, at 12:00 AM UTC

End time: Thursday, May 21, 2026, at 2:00 AM UTC

Root cause: A portion of infrastructure that supports and provides report data to the 365 admin center was performing below expected thresholds, which led to report data being stale and delayed.

Next steps: - We're reviewing our automated recovery and redirection processes for the affected portions of infrastructure responsible for supporting and providing report data to the 365 admin center in order to understand how to better detect, prevent, and respond to similar service issues in the future.

This is the final update for the event. https://status.dal.ca/service.php?Service=8 2026-05-21 15:16:22 DetailsTitle: Users may intermittently receive blank responses from Analyst Agent in Microsoft Copilot

User impact: Users may intermittently receive blank responses from Analyst Agent in Microsoft Copilot.

Current status: We're reviewing service-side telemetry in order to isolate the source of this impact and determine our next steps toward remediation.

Scope of impact: This event may impact any user utilizing the Analyst Agent in Microsoft Copilot, and any user might intermittently receive blank responses. This information may be updated as our investigation continues.

Next update by: Friday, May 22, 2026, at 1:30 AM UTC https://status.dal.ca/service.php?Service=38 2026-05-21 15:10:02 Restored:

Users may have encountered issues accessing features in Microsoft Planner. https://status.dal.ca/service.php?Service=8 2026-05-21 11:55:27 Impacted servicesPlanner

DetailsTitle: Some users may encounter issues accessing features in the Microsoft Planner application

User impact: Users may encounter issues accessing features in the Planner application.

Current status: We're investigating an issue with some users that may be encountering intermittent degradation when accessing Planner features, and analyzing service telemetry to help us identify the root cause and the next steps required to mitigate impact.

Scope of impact: Impact is specific to some users attempting to access features in the Planner application.

Next update by: Thursday, May 21, 2026, at 3:30 PM UTC https://status.dal.ca/service.php?Service=38 2026-05-21 11:10:42 Microsoft Planner:
- Some users may encounter issues accessing features in Microsoft Planner. https://status.dal.ca/service.php?Service=9 2026-05-21 10:11:56 Work being done in C323 in C-Building this could have a brief blip of individual connection for devices. https://status.dal.ca/service.php?Service=8 2026-05-21 10:01:17 Eastlink Change Control Completion Notice

Customer: Dalhousie

Change Control ID : 2253065

Start Date: 2026-05-21

End Date: 2026-05-21

Country: Canada

Location Of Work: CornerBrooke - NL

Reason For Work: Testing/Troubleshooting

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

Affected Circuits:
00144649 - Dalhousie 10Gig - UPEI Vet College - MUN St John's, NL <> UPEI Charlottetown, PE

Service Impact: Your services will be impacted while we perform troubleshooting on our Transport Network

Should you have any questions about this notice
please contact Eastlink Change Control at change@corp.eastlink.ca
Contact Number: 877-797-7799 option 4 https://status.dal.ca/service.php?Service=8 2026-05-21 10:00:26 Eastlink Change Control Completion Notice

Customer: ACORN NS

Change Control ID : 2242462

Start Date: 2026-05-21

End Date: 2026-05-21

Country: Canada

Location Of Work: Aylesford - NS

Reason For Work: Fiber Splicing

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

Affected Circuits:
00141790 - 10G Acorn New Minas to Yarmouth - acorn-nwmn-1[Twe1/0/23] <> acorn-yrmo-1[Twe1/0/24]

Service Impact: Your services will be impacted while we perform repairs on Damaged Fiber Cables

Should you have any questions about this notice
please contact Eastlink Change Control at change@corp.eastlink.ca
Contact Number: 877-797-7799 option 4 https://status.dal.ca/service.php?Service=6 2026-05-21 09:23:03 Users may be unable to view free/busy status for Gmail users within the Exchange Online calendar

User impact: Users may be unable to view free/busy status for Gmail users within the Exchange Online calendar.

More info: Affected users may see an "Unknown" status for the external Gmail contacts.

Current status: We've completed the development of our code fix, and validation of the fix within our internal testing environment is underway. We'll provide a timeline for deployment as one becomes available. https://status.dal.ca/service.php?Service=39 2026-05-21 09:20:29 Users may be unable to join town halls in Microsoft Teams using iOS 26.5 version and get an error message

User impact: Users may be unable to join town halls in Microsoft Teams using iOS 26.5 version and get an error message.

Current status: We’ve identified a recent change made to iOS 26.5 version that may be contributing to the impact. We're developing a potential solution to test whether it remediates the issue and confirms our root cause theory.

Scope of impact: Any user attempting to join town halls in Microsoft Teams using iOS 26.5 version may be affected by this issue. This section may be updated as our investigation continues. https://status.dal.ca/service.php?Service=42 2026-05-21 09:17:55 Users’ mobile application management (MAM) apps may crash if launched on devices running Android 17 QRP1 beta 3

User impact: Users’ MAM apps may have crashed if launched on an Android device with the Android 17 QRP1 beta 3 update.

Final status: We've completed releasing the fix in the Microsoft Intune Company Portal beta build version 5.0.6983.0 (8193764). Users will need to enroll in the Google Play beta program to opt into the fix, which can be done by navigating to the following link: https://aka.ms/cpdroidbeta.

Scope of impact: Any user that attempted to access MAM apps launched on an Android device with the Android 17 QRP1 beta 3 update was impacted. https://status.dal.ca/service.php?Service=8 2026-05-20 14:18:01 DetailsTitle: Users’ mobile application management (MAM) apps may crash if launched on devices running Android 17 QRP1 beta 3

User impact: Users’ MAM apps may crash if launched on an Android device with the Android 17 QRP1 beta 3 update.

More info: We recommend that users don't update their Android devices with the Android 17 QRP1 beta 3 update.

Current status: We're creating an internal reproduction of this event to facilitate our understanding of the root cause and development of a strategy that remediates impact. In parallel, we're working with a third-party partner to aid this process.

Scope of impact: Any user attempting to access MAM apps launched on an Android device with the Android 17 QRP1 beta 3 update is impacted.

Next update by: Wednesday, May 20, 2026, at 9:00 PM UTC https://status.dal.ca/service.php?Service=8 2026-05-20 10:17:22 DetailsTitle: Users may be unable to access or may experience delays when accessing Microsoft Fabric

User impact: Users may have been unable to access or may have experienced delays when accessing Microsoft Fabric.

Final status: After a period of extended monitoring, we confirmed that the issue is resolved.

Scope of impact: Any user attempting to access Microsoft Fabric may have been impacted.

Start time: Monday, May 18, 2026, at 1:53 PM UTC

End time: Monday, May 18, 2026, at 8:59 PM UTC https://status.dal.ca/service.php?Service=8 2026-05-20 09:12:27 User impact: Admins may be unable to see IP address information in the audit logs for Copilot interactions.

Current status: We've reverted the recent service update which removed the logic that records the IP information in the audit logs for Copilot interactions and we’re reaching out to a subset of affected users to validate that impact has been remediated.

Scope of impact: Any admin looking for the IP address information in the audit logs for Copilot interactions is impacted. This section may be updated as our investigation progresses.

Root cause: A recent service update removed the logic that records the IP information in the audit logs for Copilot interactions.

Next update by: Wednesday, May 20, 2026, at 9:00 PM UTC https://status.dal.ca/service.php?Service=30 2026-05-20 08:23:32 The services for Infosilem Suite Production (Timetabler, Exam Scheduler, DCU) will be unavailable between 6AM - 8AM on May 20th as ITS/EAS migrates the Suite application server.

We apologize for any inconvenience this may cause. https://status.dal.ca/service.php?Service=8 2026-05-19 14:40:31 DetailsTitle: Users may be unable to access or may experience delays when accessing Microsoft Fabric

User impact: Users may be unable to access or may experience delays when accessing Microsoft Fabric.

Current status: Our service health monitoring has alerted us to increased failures occurring when users attempt to access Microsoft Fabric. We're investigating the call requests to the portion of service infrastructure responsible for facilitating access to Microsoft Fabric to identify the source of the failures.

Start time: Monday, May 18, 2026, at 12:24 PM UTC

Next update by: Monday, May 18, 2026, at 4:30 PM UTC https://status.dal.ca/service.php?Service=8 2026-05-19 14:39:39 DetailsTitle: Users intermittently may be unable to create Copilot Notebooks through Microsoft 365 Copilot

User impact: Users intermittently may be unable to create Copilot Notebooks through Copilot.

Current status: We've determined that a recent Copilot service update introduced a code issue resulting in users being intermittently unable to create Copilot Notebooks through Copilot. We're rolling back this recent service update to remediate impact.

Scope of impact: Any user attempting to create Copilot Notebooks through Copilot may be intermittently impacted.

Root cause: A recent Copilot service update introduced a code issue resulting in users being intermittently unable to create Copilot Notebooks through Copilot.

Next update by: Monday, May 18, 2026, at 8:30 PM UTC https://status.dal.ca/service.php?Service=8 2026-05-19 14:38:47 Impacted servicesMicrosoft Copilot (Microsoft 365)







DetailsTitle: Some admins' Copilot usage and chat report data may be delayed from appearing in the Microsoft 365 admin center

User impact: Admins' Copilot usage and chat report data may have been delayed from appearing in the Microsoft 365 admin center.

More info: Specifically, admins in the North America and the Asia-Pacific regions attempting to view Copilot usage and chat report data in the Microsoft 365 admin center or directly through Graph API queries may have been impacted by delays. While impact was ongoing, the latest refresh date shown may have been outdated since May 11, 2026.

Final status: We've resolved the upstream delays that were leading to impact and have since validated through analyzing service health telemetry that this has successfully remediated all impact.

Scope of impact: Admins in the North America and the Asia-Pacific regions attempting to view Microsoft 365 Copilot usage and chat report data in the Microsoft 365 admin center or directly through Graph API queries may have been impacted.

Start time: Saturday, May 16, 2026, at 12:00 AM UTC

End time: Monday, May 18, 2026, at 12:24 PM UTC https://status.dal.ca/service.php?Service=8 2026-05-19 14:18:33 Impacted services 365 Copilot Chat







DetailsTitle: Users may be unable to access Copilot Voice in 365 Copilot Chat or conduct voice conversations

User impact: Users may be unable to access Copilot Voice in Copilot Chat or conduct voice conversations.

Current status: Our internal service monitoring has identified an issue that may be preventing users from accessing Copilot Voice in Copilot Chat or conducting voice conversations. We're analyzing recent service updates as we isolate the source for the issue and determine our next troubleshooting steps for remediating the impact.

Scope of impact: This issue may prevent any user from accessing Copilot Voice in Copilot Chat or conducting voice conversations.

Start time: Sunday, May 17, 2026, at 3:30 AM UTC

Next update by: Monday, May 18, 2026, at 12:00 AM UTC https://status.dal.ca/service.php?Service=8 2026-05-19 13:30:28 DetailsTitle: Some users may see repeated location prompts in Teams for Mac

User impact: Users may see repeated location prompts in Teams for Mac.

More info: Impacted users are unable to dismiss the following location prompt by clicking "Allow" or "Don't allow.":

"Teams Modulehost would like to use your current location"

Workaround: Impacted users may be able to resolve the issue by manually enabling location access for Teams within macOS settings. To do so, go to "System Settings" > "Privacy & Security" > "Location Services". Locate "Teams" and "Teams ModuleHost" and cycle the toggles on/off, then set it back to desired setting.

Final status: We've determined that this issue is a duplicate of another event. Please look for further updates in TM1315837. This communication will expire in 24 hours. https://status.dal.ca/service.php?Service=8 2026-05-19 13:28:42 DetailsTitle: Some users may see that some Viva Engage message posting operations are failing

User impact: Users may have see that some Viva Engage message posting operations were failing.

Final status: We've determined that a recent deployment introduced a compatibility issue between message posting operations that resulted in impact. We've deployed a code change to resolve the compatibility issue, and we've confirmed with internal monitoring and testing that the issue is resolved.

Scope of impact: Some users that performed Viva Engage message posting operations may have been affected.

Start time: Saturday, May 16, 2026, at 10:00 PM UTC

End time: Tuesday, May 19, 2026, at 12:05 AM UTC

Root cause: A recent deployment introduced a compatibility issue between message posting operations that resulted in impact https://status.dal.ca/service.php?Service=8 2026-05-19 13:27:25 DetailsTitle: Users may be unable to edit pages using SharePoint Designer

User impact: Users may be unable to edit pages using SharePoint Designer.

More info: Due to issues with the SharePoint Online Designer API, impacted users will need to utilize the following steps for updating SharePoint Online pages:

1. Ensure the DenyACP aka NoScript security protection is currently off for the site

2. Download the ASPX file

3. Make edits to the aspx file as necessary using a text editor other than SP Designer or Visual Studio.

4. Upload the ASPX file

Please note that step four will be impacted by the Support for Content Security Policy (CSP) in SharePoint Online, of which more details can be found at the following link:

https://learn.microsoft.com/en-us/sharepoint/dev/spfx/content-securty-policy-trusted-script-sources

Final status: We've determined that the API that allows editing within SharePoint Online Designer entered a problematic configuration state preventing us from restoring it. Users will need to utilize the steps outlined in the More Info portion of this communication for updating SharePoint Online pages. Users continuing to encounter problems editing SharePoint Online pages should contact one of our support representatives so we can continue our investigation into the problem.

Scope of impact: This issue may prevent any user from editing SharePoint Online pages using SharePoint Designer.

Start time: Wednesday, May 13, 2026, at 6:01 PM UTC https://status.dal.ca/service.php?Service=39 2026-05-19 11:59:57 Some users with non-ANSI characters in their alias may have been unable to launch the Microsoft Teams desktop client

User impact: Users with non-ANSI characters in their alias may have been unable to launch the Microsoft Teams desktop client.

More info: Affected users may have been unable to launch the Microsoft Teams desktop client due to failures during character encoding conversion.

As a workaround affected users may have been able to use Microsoft Teams web client.

Final status: We've confirmed that the fix has been deployed to the affected environment and is now available in build 26106.1911.4707.3286. Our system telemetry indicates no further crash events, and impact has been mitigated. https://status.dal.ca/service.php?Service=38 2026-05-19 11:58:14 Users may be unable to install Microsoft 365 apps on their Windows device

User impact: Users may have been unable to install Microsoft 365 apps on their Windows device.

More info: While we were focused on remediation, users may have been able to download the impacted apps using the following link: https://www.microsoft.com/en-us/microsoft-365/download-office?msockid=198f143bce0564771c06020ccf686598

Final status: We've been alerted to an issue affecting the Microsoft 365apps service in which users may have been unable to install Microsoft 365 apps on their Windows device. Our investigation has determined that a recent configuration change to the components of infrastructure responsible for facilitating Microsoft 365 app installation contained an error that prevented installations from occurring and led to impact. We developed and deployed a fix to resolve this error, and we've monitored our telemetry to confirm that the impact is remediated.

Scope of impact: This issue potentially impacted any user attempting to install Microsoft 365 apps on their Windows device.

Start time: Tuesday, May 12, 2026, at 9:00 PM UTC

End time: Thursday, May 14, 2026, at 4:28 AM UTC

Root cause: A recent configuration change to the components of infrastructure responsible for facilitating Microsoft 365 app installation contained an error that prevented installations from occurring and led to impact.

Next steps:

- We're reviewing our Microsoft 365 apps update and deployment procedures pertaining to the components responsible for facilitating installation to prevent similar impact in future updates.

This is the final update for the event. https://status.dal.ca/service.php?Service=8 2026-05-19 11:51:53 DetailsTitle: Some users may see repeated location prompts in Teams for Mac

User impact: Users may see repeated location prompts in Teams for Mac.

More info: Impacted users are unable to dismiss the following location prompt by clicking "Allow" or "Don't allow.":

"Microsoft Teams Modulehost would like to use your current location"

Workaround: Impacted users may be able to resolve the issue by manually enabling location access for Teams within macOS settings. To do so, go to "System Settings" > "Privacy & Security" > "Location Services". Locate "Teams" and "Teams ModuleHost" and cycle the toggles on/off, then set it back to desired setting.

Current status: We’ve identified that a recent macOS security update doesn’t store users’ location permission selections for Teams as expected, resulting in repeated location prompts. We’re working with Apple to better understand the change and identify a resolution. In parallel, we’re investigating a potential fix within Teams to mitigate the repeated prompts. Additionally, we've provided a workaround for this issue in the "More info" section of this communication.

Scope of impact: This issue impacts some Teams for Mac users who have location access enabled in Teams settings.

Start time: Monday, May 11, 2026, at 12:00 AM UTC

Root cause: A recent macOS security update doesn’t store users’ location permission selections for Teams as expected, resulting in repeated location prompts.

Next update by: Wednesday, May 20, 2026, at 3:00 PM UTC https://status.dal.ca/service.php?Service=8 2026-05-19 11:39:15 DetailsTitle: Some users with Technical Preview access may have been unable to modify existing webinars in Teams

User impact: Users with Technical Preview access may have been unable to modify existing webinars in Teams.

Final status: We've completed reverting the aforementioned update and confirmed impact is no longer occurring after a period of monitoring.

Scope of impact: Impact was specific to some users who had early release or technical preview access, attempting to update existing webinars in Virtual Events powered by Teams.

Start time: Friday, May 08, 2026, at 8:44 AM UTC

End time: Thursday, May 14, 2026, at 3:49 PM UTC https://status.dal.ca/service.php?Service=8 2026-05-19 11:37:23 DetailsTitle: Some users may see repeated location prompts in Teams for Mac

User impact: Users may see repeated location prompts in Microsoft Teams for Mac.

More info: Impacted users are unable to dismiss the following location prompt by clicking "Allow" or "Don't allow.":

"Teams Modulehost would like to use your current location"

Workaround: Impacted users may be able to resolve the issue by manually enabling location access for Teams within macOS settings. To do so, go to "System Settings" > "Privacy & Security" > "Location Services". Locate "Teams" and "Teams ModuleHost" and cycle the toggles on/off, then set it back to desired setting.

Current status: We’ve identified that a recent macOS security update doesn’t store users’ location permission selections for Teams as expected, resulting in repeated location prompts. We’ve reported this issue to Apple and are working with them to better understand the change and identify a resolution.

Scope of impact: This issue impacts some Teams for Mac users who have location access enabled in Teams settings.

Start time: Monday, May 11, 2026, at 12:00 AM UTC

Root cause: A recent macOS security update doesn’t store users’ location permission selections for Teams as expected, resulting in repeated location prompts.

Next update by: Tuesday, May 19, 2026, at 2:30 PM UTC https://status.dal.ca/service.php?Service=8 2026-05-12 11:32:31 Title: Some users may not receive results when performing searches in SharePoint Online
User impact: Users may not have received results when performing searches in SharePoint Online.
Final status: We were unable to contact impacted users to confirm if this was resolved, but our service health telemetry continues to indicate that our efforts to redirect, rebalance, and optimize traffic within the subset of affected infrastructure has successfully remediated impact.
Scope of impact: Some users performing searches in SharePoint Online may have been impacted by this event.
Start time: Monday, April 20, 2026, at 12:00 AM UTC
End time: Monday, May 11, 2026, at 1:00 AM UTC
Root cause: An unexpected increase in request traffic and search request queuing caused a subset of service infrastructure that processes SharePoint Online search requests to enter a suboptimal state, resulting in impact.
Next steps: - We're reviewing and improving our automated recovery services to prevent impact from future unexpected traffic increases. https://status.dal.ca/service.php?Service=6 2026-05-12 11:15:09 Users’ text may turn blank when translated from the reading pane in Outlook desktop and Outlook on the web

User impact: Users’ text may turn blank when translated from the reading pane in Outlook desktop and Outlook on the web.

Current status: We're reviewing system logs and samples provided by affected users to isolate the origin of this issue. https://status.dal.ca/service.php?Service=6 2026-05-12 11:14:00 Some users may be unable to view on-premises or cross-tenant free/busy availability when scheduling meetings

User impact: Users may have been unable to view on-premises or cross-tenant free/busy availability when scheduling meetings.

Final status: We've received confirmation from several users who initially reported the issue that the fix was successful and the impact is remediated. https://status.dal.ca/service.php?Service=39 2026-05-12 11:10:04 Some users with Technical Preview access may be unable to modify existing webinars in Microsoft Teams

User impact: Users with Technical Preview access may be unable to modify existing webinars in Microsoft Teams.

Current status: We’ve identified that a recent Microsoft Teams service update inadvertently introduced a regression, which is resulting in impact. We’re reverting the aforementioned update to mitigate impact. https://status.dal.ca/service.php?Service=21 2026-05-12 07:18:50 Resolved:
- Users may not have received results when performing searches in SharePoint Online. https://status.dal.ca/service.php?Service=37 2026-05-11 16:09:48 05/11/2026 03:44 PM | Email Request

Dalhousie University



Bell reference number / Numéro de référence Bell:



CM0000001348689



Start time / Heure de début (Y/M/D):



2026-05-28 11:00:01 PM (ET)



End time / Heure de fin (Y/M/D):



2026-05-29 05:00:00 AM (ET)



Estimated outage / Estimation de l’interruption:



1 h



Status / Statut:



CANCELLED



Activity / Activité:



We need to carry out work on cables and fibers in order to improve your service.
Nous devons procéder à des travaux sur câbles et fibres afin d’améliorer votre service.



Equipment / Équipement:



FIBER REPAIR



CLLI:



HLFXNS06



Circuit(s) affected / Circuit(s) impacté(s):



00/AFNT/436882/000/ALNT/000 TDA/879 CBC 526 REGENCY PARK DR HALIFAX NS ¶DALHOUSIE UNIVERSITY 6136 UNIVERSITY AV HALIFAX NS
70/CLNA/902/494/6588 TDA/879 DALHOUSIE UNIVERSITY 15 SHOREHAM LN HALIFAX NS
70/CLNA/902/494/6671 TDA/879 DALHOUSIE UNIVERSITY 15 SHOREHAM LN HALIFAX NS
70/CLNA/902/494/6949 TDA/879 DALHOUSIE UNIVERSITY 15 SHOREHAM LN HALIFAX NS



You may experience a failure(s) at any time during the above window.
Il est possible que vous éprouviez une/plusieurs interruption(s) de service lors de la fenêtre ci-dessus. https://status.dal.ca/service.php?Service=37 2026-05-11 16:15:38 Bell reference number / Numéro de référence Bell: CM0000001348689

Start time / Heure de début (Y/M/D):2026-05-28 11:00:01 PM (ET)

End time / Heure de fin (Y/M/D):2026-05-29 05:00:00 AM (ET)

Estimated outage / Estimation de l’interruption:1 h

Status / Statut:
APPROVED/ APPROUVÉ

Activity / Activité:

We need to carry out work on cables and fibers in order to improve your service.

Equipment / Équipement: FIBER REPAIR
CLLI:HLFXNS06

Circuit(s) affected / Circuit(s) impacté(s):

00/AFNT/436882/000/ALNT/000 TDA/879 CBC 526 REGENCY PARK DR HALIFAX NS ¶DALHOUSIE UNIVERSITY 6136 UNIVERSITY AV HALIFAX NS
70/CLNA/902/494/6588 TDA/879 DALHOUSIE UNIVERSITY 15 SHOREHAM LN HALIFAX NS
70/CLNA/902/494/6671 TDA/879 DALHOUSIE UNIVERSITY 15 SHOREHAM LN HALIFAX NS
70/CLNA/902/494/6949 TDA/879 DALHOUSIE UNIVERSITY 15 SHOREHAM LN HALIFAX NS https://status.dal.ca/service.php?Service=36 2026-05-11 14:37:41 Provider New Change Control Notice


Type Of Work: Maintenance

Customer: Dalhousie

Change Control ID : 2253065

Start Date (yyyy-mm-dd): 2026-05-21

End Date (yyyy-mm-dd): 2026-05-21

Country: Canada

Location Of Work: CornerBrooke - NL

Reason For Work: Testing/Troubleshooting

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

Affected Circuits:
00144649 - Dalhousie 10Gig - UPEI Vet College - MUN St John's, NL <> UPEI Charlottetown, PE

Service Interruption Duration: less than 20 minute

Service Impact:
Your services will be impacted while we perform troubleshooting on our Transport Network https://status.dal.ca/service.php?Service=6 2026-05-11 12:27:52 Some users may be unable to view on-premises or cross-tenant free/busy availability when scheduling meetings
User impact: Users may be unable to view on-premises or cross-tenant free/busy availability when scheduling meetings.
More info: Cross-tenant or on-premises free/busy lookups via the Outlook Scheduling Assistant fail for attendees in a specific domain. As a result, availability consistently appears as “Unknown,” preventing effective meeting scheduling.
Current status: We've isolated that impact is not limited to users in the Asia Pacific region, and we've updated the "Scope of impact" field of our communications to reflect this. We're working with a subset of affected users to schedule a debugging session to collect additional logging during a reproduction of impact to assist with furthering our root cause analysis.
Scope of impact: Impact is specific to some users attempting to view free/busy availability. This information may be updated as our investigation continues. https://status.dal.ca/service.php?Service=39 2026-05-11 09:27:30 Users may see incorrect characters in incoming Microsoft Teams call notifications when display names contain diacritics
User impact: Users may see incorrect characters in incoming Microsoft Teams call notifications when display names contain diacritics.
More info: Users may see incorrect or corrupted characters in incoming Microsoft Teams call notification banners when display names contain European diacritical characters (e.g. ä, é, ü), resulting in names appearing with placeholder symbols.
Current status: We’re continuing to validate the code fix to confirm its effectiveness before deploying it to the affected infrastructure. We'll share a deployment timeline once the validation is complete.
Scope of impact: Impact is specific to some users receiving inbound Microsoft Teams calls notifications when display names contain diacritics. https://status.dal.ca/service.php?Service=8 2026-05-08 08:15:24 Some users may get stuck in a crash loop upon startup of the Teams service https://status.dal.ca/service.php?Service=43 2026-05-08 08:14:00 Resolved:

Microsoft Dataverse:
- Users may have experienced intermittent environment access failures, intermittent general degraded performance, or intermittent failures for all operations performed in Microsoft Dataverse. https://status.dal.ca/service.php?Service=8 2026-05-08 08:14:20 Title: Users may be unable to adjust their camera brightness in Teams settings
User impact: Users may have been unable to adjust their camera brightness in Microsoft Teams settings.
More info: When attempting to adjust camera brightness, users may have received a message stating "Adjust brightness is unavailable. Check your network connection, or contact your IT admin."
Affected users will need to upgrade to Teams build version 26093.415.4620.1935 for Windows clients and version 26093.311.4599.3126 for Mac clients in order to fully remediate impact.
Final status: We've confirmed that the builds have deployed to the remaining affected users and the impact is remediated.
Scope of impact: This issue may have affected any user attempting to adjust their camera brightness in Microsoft Teams settings.
Start time: Friday, February 27, 2026, at 4:37 AM UTC
End time: Thursday, May 07, 2026, at 6:38 PM UTC
Root cause: The ability to adjust camera brightness was no longer operable due to an unrelated issue where crashes in Teams meetings were occurring due to a code issue relating to the setting, which resulted in impact.
Next steps: We're reviewing our code testing and validation procedures to identify and prevent similar issues with crashes in Teams meetings that cause the ability to adjust camera brightness to no longer be operable, which will help us prevent similar impact from occurring in the future.
This is the final update for the event. https://status.dal.ca/service.php?Service=36 2026-05-07 08:24:14 Eastlink Change Control Completion Notice


Customer: ACORN NS

Change Control ID : 2243575

Start Date: 2026-05-07

End Date: 2026-05-07

Country: Canada

Location Of Work: Liverpool - NS

Reason For Work: Hardware Upgrade

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

Affected Circuits:
00141795 - 10G Acorn YT to Yarmouth

Service Impact: Your services will be impacted while we perform maintenance on our Transport Network


Should you have any questions about this notice
please contact Eastlink Change Control at change@corp.eastlink.ca
Contact Number: 877-797-7799 option 4 https://status.dal.ca/service.php?Service=6 2026-05-07 08:20:53 Some users may have been unable to use classic Outlook when the Teams Meeting Add-in is enabled
User impact: Users may have been unable to use classic Outlook when the Teams Meeting Add-in is enabled.
More info: Specifically, impacted users may have experienced crashes while using the classic Outlook on any client, or be unable to launch the service.
We've confirmed that the previous Microsoft Teams version 26032.208.4399.5 works successfully with classic Outlook. Users who’ve updated to the latest version of Teams and are still experiencing issues should restart the Teams app and sign out and back in again to ensure the updated configuration is applied. If the issue persists, we recommend reaching out to your support representatives to request a temporary reversion if you're affected by this event.
Final status: We've confirmed that the fix has been successfully deployed and issue has been mitigated. https://status.dal.ca/service.php?Service=39 2026-05-07 07:41:54 Users may be unable to copy and paste Microsoft Teams Shifts between users without returning incorrect user IDs
User impact: Users may have been unable to copy and paste Microsoft Teams Shifts between users without returning incorrect user IDs.
Final status: We've deployed the fix to all affected environments and confirmed through monitoring service health telemetry that the impact has been remediated. https://status.dal.ca/service.php?Service=38 2026-05-07 07:23:24 Copilot Chat:
- Users may receive an error or be directed to a page that never loads when clicking links to other apps provided by Copilot Chat prompts. This issue impacts any service where Copilot Chat can be utilized, which includes but may not be limited to the following:
• Microsoft Teams
• Word
• Excel
• PowerPoint
• Outlook
• OneNote https://status.dal.ca/service.php?Service=43 2026-05-07 07:21:40 Microsoft Dataverse:
- Users may experience intermittent environment access failures, intermittent general degraded performance, or intermittent failures for all operations performed in Microsoft Dataverse. https://status.dal.ca/service.php?Service=39 2026-05-06 11:03:08 Users were unable to use the Custom AI meeting summary feature for Microsoft Teams due to the feature being disabled
User impact: Users were unable to use the Custom AI meeting summary feature for Microsoft Teams due to the feature being disabled.
Final status: We've confirmed that the propagation of the code change across the affected infrastructure has successfully completed and that impact is resolved. https://status.dal.ca/service.php?Service=9 2026-05-06 08:54:25 6414 Coburg is back online https://status.dal.ca/service.php?Service=9 2026-05-06 08:19:38 Eastlink Change Control Completion Notice


Customer: ACORN NS

Change Control ID : 2246650

Start Date: 2026-05-06

End Date: 2026-05-06

Country: Canada

Location Of Work: Yarmouth - NS

Reason For Work: Fiber Splicing

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

Affected Circuits:
00118531 - acorn-yrmo-1 to Universite Sainte-Anne - 1695 Route 1, Church Point, NS

Service Impact: Your services will be under Threat during Fiber Splicing, No impact anticipated


Should you have any questions about this notice
please contact Eastlink Change Control at change@corp.eastlink.ca
Contact Number: 877-797-7799 option 4 https://status.dal.ca/service.php?Service=39 2026-05-06 08:04:44 Title: Users may be unable to copy and paste Microsoft Teams Shifts between users without returning incorrect user IDs https://status.dal.ca/service.php?Service=39 2026-05-06 08:03:19 Title: Some users may get stuck in a crash loop upon startup of the Microsoft Teams service
User impact: Users may have been stuck in a crash loop upon startup of the Microsoft Teams service.
Final status: After completing the reversion of the change and monitoring to ensure the corresponding service monitors have returned to the expected reliability levels, we've validated that the impact is no longer occurring. https://status.dal.ca/service.php?Service=9 2026-05-06 08:00:22 6414 Coburg is currently offline.
Looking into cause. https://status.dal.ca/service.php?Service=21 2026-05-06 07:16:48 Users may not receive results when performing searches in SharePoint Online. https://status.dal.ca/service.php?Service=6 2026-05-05 14:59:33 Title: Users may be experiencing high latency when performing searches in Exchange Online
Final status: We’ve monitored service health telemetry and validated that our service optimizations to expand available resources and reduce overall latency successfully alleviated latency, resolving the issue. https://status.dal.ca/service.php?Service=21 2026-05-05 12:04:19 Title: Some users may have been unable to successfully invoke Power Automate flows from their SharePoint (SPFx) applications
User impact: Users may have been unable to successfully invoke Power Automate flows from their SPFx applications.
Current status: We've identified that a recent service update introduced a token provider that was incorrectly modifying a specific resource endpoint URL, resulting in impact. We've reverted service to the previous known working version, and received feedback from a number of affected users that impact has been remediated. https://status.dal.ca/service.php?Service=36 2026-05-04 15:06:54 Cancel Or Update Reason : This work has been canceled, sorry for any inconvenience this may have caused.

Change Control ID : 2241145

Start Date: 2026-05-08

End Date: 2026-05-08

Country: Canada

Location Of Work: Port Hawkesbury - NS

Reason For Work: Forced Relocate

Release Window (24 hr format): 00:01 - 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 : 3 hours

Service Impact: Your services will be impacted while we perform a Forced Fiber Relocate https://status.dal.ca/service.php?Service=39 2026-05-04 10:18:53 Title: Users can't access complete meeting recordings for some Microsoft Teams meetings
User impact: Users can't access complete meeting recordings for some Microsoft Teams meetings.
More info: As a workaround, some affected users could download their meeting recordings using the Async Media Storage link available in the meeting chats.
Final status: We’ve successfully deployed the fix to the affected environment, and following an extended monitoring period, we can confirm that impact is no longer occurring. https://status.dal.ca/service.php?Service=39 2026-05-04 08:24:26 Title: Some users may have been unable to access files through Microsoft Teams and may have received errors
User impact: Users may have been unable to access files through Microsoft Teams and may have received errors.
More info: Impact was specific to downloading or accessing PowerPoint and Excel files through Microsoft Teams.
Final status: We've conducted a period of monitoring service telemetry and can confirm that impact is remediated and the service is healthy. https://status.dal.ca/service.php?Service=6 2026-05-04 08:22:55 Title: Users may be unable to reply to email messages from a pop-up window in Outlook on the web
User impact: Users may have been unable reply to email messages from a pop-up window in Outlook on the web.
More info: This issue may have occurred within any browser and impacted single reply and reply all functions. While we were focused on remediation, user testing indicated that by changing browser-specific pop-up settings to ensure that pop-ups were allowed, affected users may have been able to avoid impact.
Final status: We've confirmed through testing with a subset of affected users that the impact has been remediated. Affected users may need to refresh their Outlook on the web session to have the changes saturate.
Scope of impact: Users attempting to reply to email messages from a pop-up window in Outlook in the web may have been impacted. https://status.dal.ca/service.php?Service=8 2026-05-01 15:30:59 Title: Users may be experiencing high latency when performing searches in Exchange Online
User impact: Users may be experiencing high latency when performing searches in Exchange Online.
Current status: We're reviewing service health telemetry to isolate the source of impact and identify any errors which may be contributing to search latency.
Scope of impact: This issue may impact any user attempting to perform searches in Outlook, Outlook on the web, or Outlook mobile.
Next update by: Friday, May 01, 2026, at 7:30 PM UTC https://status.dal.ca/service.php?Service=21 2026-05-01 15:25:11 Users may not receive results when performing searches in SharePoint Online. https://status.dal.ca/service.php?Service=8 2026-05-01 15:15:31 Title: Users may be experiencing high latency when performing searches in Exchange Online
User impact: Users may be experiencing high latency when performing searches in Exchange Online.
Current status: We're investigating a potential issue with Exchange Online and checking for impact to your organization. We'll provide an update within 30 minutes. https://status.dal.ca/service.php?Service=21 2026-05-01 08:14:22 Resolved:
- Users may not have been able to load the search bar in OneDrive and SharePoint Online sites. https://status.dal.ca/service.php?Service=40 2026-05-01 08:14:04 Resolved:
- Users may not have been able to load the search bar in OneDrive and SharePoint Online sites. https://status.dal.ca/service.php?Service=8 2026-04-30 15:50:53 Eastlink New Change Control Notice


Type Of Work: Project

Customer: ACORN NS

Change Control ID : 2246650

Start Date (yyyy-mm-dd): 2026-05-06

End Date (yyyy-mm-dd): 2026-05-06

Country: Canada

Location Of Work: Yarmouth - NS

Reason For Work: Fiber Splicing

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

Affected Circuits:
00118531 - acorn-yrmo-1 to Universite Sainte-Anne - 1695 Route 1, Church Point, NS

Service Interruption Duration: Network Threat - NonService Affecting

Service Impact:
Your services will be under Threat during Fiber Splicing, No impact anticipated https://status.dal.ca/service.php?Service=40 2026-04-30 14:54:09 Users may not be able to load the search bar in OneDrive or SharePoint Online sites. https://status.dal.ca/service.php?Service=21 2026-04-30 14:53:50 Users may not be able to load the search bar in SharePoint Online sites or OneDrive. https://status.dal.ca/service.php?Service=8 2026-04-30 14:35:33 Title: Users may not be able to load the search bar in OneDrive
User impact: Users may not be able to load the search bar in Microsoft OneDrive.
Current status: We've reproduced the issue in our environment, and we're reviewing traces collected while the issue is occurring to pinpoint the source of the failure.
Scope of impact: This event impacts any user attempting to use the search bar in OneDrive.
Next update by: Thursday, April 30, 2026, at 6:30 PM UTC https://status.dal.ca/service.php?Service=21 2026-04-30 07:17:58 Microsoft reported and resolved an issue where users may have been unable to view analytics for SharePoint Online sites. Specifically, when attempting to view site analytics data, the page rendered but analytics data may not have been populated. https://status.dal.ca/service.php?Service=8 2026-04-29 15:34:16 Title: Some users may be intermittently unable to browse apps in Teams
User impact: Users may have been intermittently unable to browse apps in Teams.
More info: Affected users were able to manage their existing apps without issue.
Final status: Following the deployment of our fix, our internal telemetry has validated that the affected portion of Teams app store infrastructure has been addressed and that the impact has been remediated.
Scope of impact: This issue intermittently may have impacted some users attempting to browse apps in Microsoft Teams.
 
Start time: Tuesday, April 07, 2026, at 12:00 AM UTC
End time: Wednesday, April 29, 2026, at 3:30 PM UTC
Root cause: A recent change intended to update a portion of the Teams app store infrastructure resulted in impact.
Next steps: - We're further analyzing the offending recent change to help us improve our pre-deployment testing and validation processes.
This is the final update for the event. https://status.dal.ca/service.php?Service=8 2026-04-28 16:13:46 Title: Admins' search parameters may be missing after performing a group search in the Exchange admin center
User impact: Admins' search parameters may have been missing after performing a group search in the Exchange admin center.
More info: Specifically, the search terms were removed upon initiating group searches.
Other searches didn't appear to be affected.
Final status: Following our completed fix deployment, we've confirmed with affected admins that search parameters when conducting group searches in the Exchange Online admin center have been restored, and that the impact has been remediated.
Scope of impact: Any admin who performed a group search in the Exchange admin center may have been affected.
Start time: Tuesday, April 14, 2026, at 11:37 AM UTC
End time: Wednesday, April 22, 2026, at 12:00 AM UTC
Root cause: A recent service-side configuration change contained a code issue that prevented the search parameters from populating after performing a group search in the Exchange admin center.
Next steps: We're further analyzing the offending configuration change to find ways to improve our pre-deployment testing and validation processes and to prevent similar problems in the future.
This is the final update for the event. https://status.dal.ca/service.php?Service=39 2026-04-28 08:16:32 Title: Some users may get incorrect or stale content when using Platform deep links in Microsoft Teams
User impact: Users may have seen incorrect or stale content when using Platform deep links in Microsoft Teams.
Final status: We've confirmed that the deployment of the fix has completed, and we've validated with internal telemetry that the impact is remediated.
Scope of impact: This issue may have affected users who use Platform deep links and have opted into the Technology Adoption Program or Public Preview programs. https://status.dal.ca/service.php?Service=6 2026-04-28 07:07:38 Outlook on the web:
- Users may be unable to reply to email messages from a pop-up window in Outlook on the web. This issue may occur within any browser and impacts single reply and reply all functions. While Microsoft is focused on remediation, user testing indicates that by changing browser-specific pop-up settings to ensure that pop-ups are allowed, affected users may be able to avoid impact. https://status.dal.ca/service.php?Service=38 2026-04-28 07:05:52 Restored:
- Copilot: Users may have been unable to access Copilot through Office.com or in the app directly. https://status.dal.ca/service.php?Service=43 2026-04-28 07:05:15 Restored:
- Power Apps: Users were experiencing failures opening apps that require permission to access data. https://status.dal.ca/service.php?Service=38 2026-04-27 15:55:30 Copilot:
- Users may be unable to access Copilot through Office.com or in the app directly. https://status.dal.ca/service.php?Service=39 2026-04-27 15:12:55 Title: Users may be unable to use the paste function in Microsoft Teams desktop client chats
User impact: Users may have been unable to use the paste function in Microsoft Teams desktop client chats.
More info: Impacted users report that they were unable to paste URLs, text, and images in Microsoft Teams desktop client chats, as the paste option appeared greyed out when using the right-click dropdown menu method.
To bypass impact, we recommended that users paste the intended URLs, text, and images using Ctrl + V for Windows, and corresponding Cmd + V for Mac.
Final status: The fix has completed deployment and we've confirmed that impact is remediated. https://status.dal.ca/service.php?Service=43 2026-04-27 11:32:45 Power Apps:
- Users are experiencing failures opening apps that require permission to access data. https://status.dal.ca/service.php?Service=39 2026-04-27 10:09:05 Title: Users may be unable to use the Custom AI meeting summary feature for Microsoft Teams due to the feature being disabled
User impact: Users may be unable to use the Custom AI meeting summary feature for Microsoft Teams due to the feature being disabled.
Current status: We've identified an issue affecting the AI‑generated Custom meeting summary feature in Microsoft Teams, where some users may have seen incorrect meeting summary content. To prevent users from encountering this scenario, we've temporarily disabled the feature while we address the issue, and we're assessing to determine a timeline for re-enablement.
Scope of impact: Users attempting to use the Custom AI meeting summary feature in Microsoft Teams may be impacted. This information may be updated as our investigation continues.
Root cause: An issue was affecting the AI‑generated Custom meeting summary feature in Microsoft Teams, where some users may have seen incorrect meeting summary content. To prevent users from encountering this scenario, we've temporarily disabled the feature while we address the issue. https://status.dal.ca/service.php?Service=39 2026-04-27 09:58:36 Service Degradation

Title: Users can't access complete meeting recordings for some Microsoft Teams meetings
User impact: Users can't access complete meeting recordings for some Microsoft Teams meetings.
More info: As a workaround, some affected users can download their meeting recordings using the Async Media Storage link available in the meeting chats.
Current status: We’re continuing recovery operations for the remaining affected meeting recordings and are monitoring progress to ensure the restoration completes as expected. We'll share a completion timeline when one becomes available.
Scope of impact: Your organization is affected by this event, and some users attempting to access complete meeting recordings for some Microsoft Teams meetings may be impacted. https://status.dal.ca/service.php?Service=39 2026-04-27 09:50:55 Title: Users may be intermittently unable to join town halls in Microsoft Teams on Android devices
User impact: Users may have been intermittently unable to join town halls in Microsoft Teams on Android devices.
More info: Additionally, users may have been unable to load the streaming player for town halls. This only impacted events that were using real time messaging protocol (RTMP) for video injection. Removing RTMP video resolved the issue.
Affected users may have seen the following message: "The event isn't live right now".
Final status: We’ve received confirmation from your support representatives that the issue has been resolved following full deployment of the new build, which is available in the app store as Microsoft Teams version 1416/1.0.0.2026073002.
Scope of impact: Users attempting to join town halls in Microsoft Teams on Android devices may have been intermittently impacted. https://status.dal.ca/service.php?Service=37 2026-04-24 11:49:07 Ticket ID: 21116 (Maintenance - Scheduled - Major)
Start Date: Apr 29, 2026 12:00 AM EST
End Date: Apr 29, 2026 06:00 AM EST
Cause: Upgrade - Software

Service Outage Details
During this event, users could have trouble using one of the specified services in the specified regions.

Impacted Services
Push to Talk

Impacted Locations / Sites
Canada https://status.dal.ca/service.php?Service=37 2026-04-24 11:47:47 Ticket ID: 21115 (Maintenance - Scheduled - Major)
Start Date: Apr 28, 2026 12:00 AM EST
End Date: Apr 28, 2026 06:00 AM EST
Cause: Upgrade - Software

Service Outage Details
During this event, users could have trouble using one of the specified services in the specified regions.

Impacted Services
Push to Talk

Impacted Locations / Sites
Canada https://status.dal.ca/service.php?Service=36 2026-04-24 11:42:37 Provider New Change Control Notice


Type Of Work: Expedite

Customer: ACORN NS

Change Control ID : 2243575

Start Date (yyyy-mm-dd): 2026-05-07

End Date (yyyy-mm-dd): 2026-05-07

Country: Canada

Location Of Work: Liverpool - NS

Reason For Work: Hardware Upgrade

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

Affected Circuits:
00141795 - 10G Acorn YT to Yarmouth

Service Interruption Duration: 4 hours

Service Impact:
Your services will be impacted while we perform maintenance on our Transport Network https://status.dal.ca/service.php?Service=8 2026-04-23 10:57:42 Title: Users in North America may be unable to join Teams meetings or experience dropped calls
User impact: Users in North America may have been unable to join Microsoft Teams meetings or experienced dropped calls.
More info: Users may have also experienced degraded video and audio quality.
Final status: After an extended period of monitoring, we confirmed through service health telemetry that this issue is resolved.
Scope of impact: Users hosted within North America, primarily the Eastern US-region and Canada, attempting to join Teams meetings may have been impacted.
Start time: Wednesday, April 22, 2026, at 3:00 PM UTC
End time: Wednesday, April 22, 2026, at 7:25 PM UTC
Preliminary root cause: A recent routing configuration update in the network infrastructure that services Microsoft Teams resulted in a drop in network availability, leading to impact.
Next steps:
- To help prevent similar impact in the future, we're further reviewing our testing and validation processes for network routing configuration updates prior to deployment.
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=8 2026-04-23 10:56:04 Title: Users in North America may be unable to join Teams meetings or experience dropped calls
User impact: Users in North America may be unable to join Microsoft Teams meetings or experience dropped calls.
More info: Users may also experience degraded video and audio quality.
Current status: We're investigating a potential temporary drop in network availability that caused some users in North America to not be able to join Teams meetings or experience degraded video and audio quality. We rerouted traffic to healthy infrastructure and are monitoring to ensure the service recovers as expected.
Scope of impact: Users within North America attempting to join Teams meetings may be impacted.
Start time: Wednesday, April 22, 2026, at 3:00 PM UTC
Next update by: Wednesday, April 22, 2026, at 8:00 PM UTC https://status.dal.ca/service.php?Service=39 2026-04-23 08:18:58 Service Restored


Title: Some users may experience intermittent failures or delays when starting recording features in Microsoft Teams meetings
User impact: Users may have experienced intermittent failures or delays when starting recording features in Microsoft Teams meetings.
More info: Impacted users may have noticed that after selecting the option to start recording, transcription, or closed captions, the action took longer than expected to begin or may have failed. In some cases, retrying the action may have succeeded after a delay. Stopping recordings doesn’t appear to have been impacted and continued to work as expected.
Final status: We've confirmed through internal service monitoring that our service scaling optimization changes together with our rollback of the impacted build have successfully resolved the issue, remediating impact.
Scope of impact: Impact was specific to some users on Microsoft Teams build 26040401710 attempting to start recording, transcription, or closed captions in Microsoft Teams meetings. https://status.dal.ca/service.php?Service=39 2026-04-23 08:17:34 Service restored

Title: Users may be unable to launch the Microsoft Teams for Windows and Mac desktop clients
User impact: Users may have been unable to launch the Teams for Windows and Mac desktop clients.
More info: When attempting to launch the Microsoft Teams desktop clients for Windows or Mac, users became stuck on the loading screen and received the following error message: "We're having trouble loading your message. Try refreshing." Impacted users may have been able to restart their client to bypass impact.
Users that continued to see impact may have needed to quit and restart their desktop clients to receive the fix.
Final status: We've monitored service health telemetry for an extended period and confirmed that reverting the offending service update has remediated the impact for all affected users.
Scope of impact: Users attempting to launch the Microsoft Teams desktop clients for Mac may have been impacted by this event. https://status.dal.ca/service.php?Service=39 2026-04-22 08:55:40 User impact: Users' Yealink E2 Teams phones on the latest Android 15 version may be marked as noncompliant and signed out.

More info: Users' Yealink MP5X E2 Teams devices running on firmware version 176.15.0.191 and the latest Android 15 operating system, may appear as noncompliant in Intune.
Users on impacted devices may also lose access to resources if conditional access policies require a complaint device. For organizations using compliance-based Conditional Access policies with a 30-day grace period, affected devices may be signed out when that grace period expires.
Current status: We were alerted to an issue by customer reports, indicating impact to Teams Yealink MP5X E2 devices after upgrading to the latest Android 15 operating system. Our analysis and investigation into the affected devices and logs confirmed that the latest Android 15 operating system update has introduced a configuration issue causing impacted devices to not be able to access a necessary certificate component, leading to impact. We're working on developing an expedited fix to be deployed to all affected environments to fully resolve impact.
Scope of impact: Any user whose Teams Yealink E2 devices upgraded to the latest Android 15 operating system, may be marked as noncompliant and signed out. This section may be updated as our investigation continues.

Root cause: The latest Android 15 operating system update has introduced a configuration issue causing impacted devices to not be able to access a certificate component, leading to impact.
Next update time: Wednesday, April 21, 2026, at 10:00 PM UTC https://status.dal.ca/service.php?Service=39 2026-04-22 08:52:03 User impact: Users may experience intermittent failures or delays when attempting to start recording in Teams meetings.

More info: Impacted users may notice that after selecting the option to start recording or enable closed captions, the action takes longer than expected to begin or may fail. In some cases, retrying the action may succeed after a delay. Stopping recordings does not appear to be impacted and continues to work as expected.

Current status: We’re analyzing service telemetry and recent meeting activity signals to determine the root cause of the issue and identify the steps required to mitigate impact.
Scope of impact: Impact is specific to some users attempting to start recording or enable closed captions in Teams meetings.

Next update by: Tuesday, April 21, 2026, at 10:00 AM UTC https://status.dal.ca/service.php?Service=36 2026-04-22 08:49:10 Provider New Change Control Notice


Type Of Work: Project

Customer: Canary NOC

Change Control ID : 2241145

Start Date (yyyy-mm-dd): 2026-05-08

End Date (yyyy-mm-dd): 2026-05-08

Country: Canada

Location Of Work: Port Hawkesbury - NS

Reason For Work: Forced Relocate

Release Window (24 hr format): 00:01 - 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: 3 hours

Service Impact:
Your services will be impacted while we perform a Forced Fiber Relocate https://status.dal.ca/service.php?Service=39 2026-04-21 15:10:59 Service Restored

Title: Some users may be unable to move channels into folders, such as favorites, or sections within Microsoft Teams
User impact: Users may have been unable to move channels into folders, such as favorites, or sections within Microsoft Teams.
More info: Affected users may have seen channels become hidden when attempting to move them into folders or sections.
To unhide affected channels, users could navigate to Teams, See all channels, find the hidden channel, and select 'Show'. If another attempt was made to move the channel into a folder or section, it may have become hidden again.
Final status: We've completed our rollout of the secondary fix to address the offending code change and have validated from internal testing that our fix successfully remediates impact.
Scope of impact: Some users attempting to move channels into folders or sections within Microsoft Teams may have been impacted. https://status.dal.ca/service.php?Service=39 2026-04-21 15:09:01 Title: Users may see a greyed out 'hold' button in 1:1 calls using the Microsoft Teams desktop and web clients
User impact: Users may have seen a greyed out 'hold' button in 1:1 calls using the Microsoft Teams desktop and web clients.
More info: Impact was specific to users that have already placed a call on 'hold' and 'resumed' that call, as subsequent hold attempts may have failed.
Final status: We've confirmed that the fix has completed deploying to all environments and validated that this issue has been remediated via service telemetry.
Scope of impact: Any user attempting to place a call on hold for a second time from the Microsoft Teams desktop or web clients may have been affected.
Root cause: A regression was introduced within a recent Microsoft Teams client update and was resulting in impact.
Next steps:
- We're continuing our analysis of the impacting code change to better understand the underlying cause of impact and prevent similar regressions in the future.
This is the final update for the event. https://status.dal.ca/service.php?Service=6 2026-04-21 13:33:06 Title: Users may be unable to access their mailboxes with Outlook on the web and the new Outlook desktop client
User impact: Users may have been unable to access their mailboxes with Outlook on the web and the new Outlook desktop client.
More info: While we were focused on remediation, users that had access to the classic Outlook desktop or Outlook mobile apps could have used them to circumvent the impact.
Final status: We've monitored the affected environment and confirmed that our code regression fix has remediated the impact.
Scope of impact: Users located in France and Canada that attempted to access their mailboxes from Outlook on the web and the new Outlook desktop client may have been impacted.
Root cause: A subset of control plane service infrastructure that helps monitor and secure multiple Outlook service connections was performing below our manageable service performance thresholds due to a code regression. This issue was preventing users from accessing their mailboxes from Outlook on the web and the new Outlook desktop client.
Next steps:
- We're reviewing and improving our code update validation procedure to detect and prevent similar issues before they cause impact in the future.
This is the final update for the event. https://status.dal.ca/service.php?Service=39 2026-04-21 07:04:36 Users may be unable to launch the Microsoft Teams desktop client. When attempting to launch the Microsoft Teams desktop clients for Windows or Mac, users become stuck on the loading screen and receive the following error message: "We're having trouble loading your message. Try refreshing." Impacted users may be able to restart their client to bypass impact.

Windows users that continue to see impact may need to quit and restart their desktop clients to receive the fix. https://status.dal.ca/service.php?Service=39 2026-04-20 14:15:54 User impact: Users may be unable to initiate screen sharing in 1:1 calls using the Teams web client.
More info: Specifically, only the first screen sharing session works; subsequent screen-sharing attempts may not be visible.

While we're working to remediate this issue, affected users can still perform screen sharing by:
- Using the desktop or mobile apps
- Adding another user to the call
- Ending and restarting the call

Current status: We're in the process of analyzing gathered logs and service telemetry to better understand the impact scenario and develop a remediation strategy.
Scope of impact: Any user initiating a second screen sharing session within a 1:1 call using the Teams web client may be affected.
Next update by: Tuesday, April 21, 2026, at 1:00 PM AST https://status.dal.ca/service.php?Service=6 2026-04-20 14:12:28 User impact: Users may have experienced timeouts or errors when accessing their Exchange Online mailboxes through Outlook on the web.

Final status: After the deployment of our solution, our additional service monitoring has validated that our code change has addressed the impacting networking problems for the subset of service infrastructure, and the impact has been remediated.
Scope of impact: Some users in Canada attempting to access their Exchange Online mailboxes through Outlook on the web may have been affected.
Start time: Thursday, April 9, 2026, at 10:00 AM AST
End time: Thursday, April 16, 2026, at 1:00 AM AST

Root cause: A portion of infrastructure responsible for facilitating mailbox access requests through Outlook on the web was performing below acceptable thresholds due to a networking issue, resulting in impact.

Next steps:
- We're further analyzing the isolated networking issue to help us determine its source in our effort to prevent similar issues in the future. https://status.dal.ca/service.php?Service=39 2026-04-20 14:10:18 User impact: Users may not have heard their Teams secondary ringer audio on specific devices.

More info: Specifically, this issue affected the secondary ringer for users who were leveraging Citrix Virtual Desktop Infrastructure (VDI) 2 devices.

Final status: We've confirmed with a subset of affected users that our code fix has successfully remediated all impact as expected for this issue.

Scope of impact: Some users leveraging Citrix VDI 2 for their secondary ringer devices may have been impacted by this event.

Start time: Thursday, March 19, 2026, at 9:16 AM AST
End time: Wednesday, April 15, 2026, at 1:35 PM AST

Root cause: A recent update made to VDI device management handling introduced a regression and was resulting in impact.

Next steps:
- We're reviewing our service update check and implementation processes to improve how we detect potential Teams VDI device management code regressions and prevent similar service events from occurring in the future. https://status.dal.ca/service.php?Service=39 2026-04-20 14:07:15 Title: Some users may be unable to initiate screen sharing in 1:1 calls using the Teams web client

Current status: We're investigating a potential issue with Teams and checking for impact to your organization. We'll provide an update within 30 minutes.