Tuesday, September 01, 2020

M365 Service Health Notification

Microsoft

Microsoft Teams service alert

Incident information

Title: Any user that enters into offline mode in Microsoft Teams is unable to move back to online mode
ID: TM221111

Status

Service Restored

Details

Title: Any user that enters into offline mode in Microsoft Teams is unable to move back to online mode

User Impact: Users are unable to return to online mode in Microsoft Teams after entering into offline mode.

More info: Affected users would see the message banner indicating that they were in offline mode. Users may have entered an offline state due to a network connectivity issue or by manually selecting to enter offline mode.

Final status: We've confirmed via service monitoring that our fix has prevented further impact from occurring, and that our partial reversion of the offending build and fix deployment have remediated user issues returning to online mode.

Scope of impact: Your organization was affected by this event, and this could impact any of your users that have entered offline mode.

Start time: Tuesday, August 25, 2020, at 7:00 PM UTC

End time: Wednesday, September 2, 2020, at 12:30 AM UTC

Root cause: A recent update introduced an issue in which users that entered offline mode in Microsoft Teams were unable to return to online mode.

Next steps:

- We're reviewing our recent update to better identify and prevent similar issues during our development and testing cycles.

This is the final update for the event.

Thank you,
The Microsoft team

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Microsoft Corporation
One Microsoft Way
Redmond, WA USA 98052

M365 Service Health Notification

Microsoft

Skype for Business service alert

Incident information

Title: Some users may be unable to sign in to the Skype for Business service
ID: LY221254

Status

False Positive

Details

Title: Some users may be unable to sign in to the Skype for Business service

User Impact: Users may be unable to sign in to the Skype for Business service.

Current status: We're investigating a potential issue with the Skype for Business service. We'll provide an update within 30 minutes.

Thank you,
The Microsoft team

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Microsoft Corporation
One Microsoft Way
Redmond, WA USA 98052

M365 Service Health Notification

Microsoft

Skype for Business service alert

Incident information

Title: Some users may be unable to sign in to the Skype for Business service
ID: LY221254

Status

Investigating

Details

Title: Some users may be unable to sign in to the Skype for Business service

User Impact: Users may be unable to sign in to the Skype for Business service.

Current status: We're investigating a potential issue with the Skype for Business service. We'll provide an update within 30 minutes.

Thank you,
The Microsoft team

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Microsoft Corporation
One Microsoft Way
Redmond, WA USA 98052

Monday, August 31, 2020

M365 Service Health Notification

Microsoft

Microsoft Teams service alert

Incident information

Title: Any user may experience timeouts when joining conferences calls via PSTN
ID: TM221183

Status

Service Restored

Details

Title: Any user may experience timeouts when joining conferences calls via PSTN

User Impact: Any user may have experienced timeouts when joining conferences calls via Public Switched Telephone Network (PSTN).

More info: Users may have experienced a delay of up to 15 seconds before being unable to join a conference in Microsoft Teams.

Final status: We've determined that a portion of infrastructure facilitating Microsoft Teams conference calls via PSTN had become unhealthy. We restarted the affected infrastructure and confirmed impact remediation after monitoring the service.

Scope of impact: Your organization was affected by this event, and impact was specific to approximately 2% of users served through the affected infrastructure.

Start time: Monday, August 31, 2020, at 2:00 AM UTC

End time: Monday, August 31, 2020, at 3:00 PM UTC

Root cause: A portion of infrastructure facilitating Microsoft Teams conference calls via PSTN had become unhealthy.

Next steps:

-We're monitoring the affected environment to ensure impact does not reoccur and are reviewing our monitoring services to look for ways to reduce detection time and more quickly restore service.

This is the final update for the event.

Thank you,
The Microsoft team

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Microsoft Corporation
One Microsoft Way
Redmond, WA USA 98052

M365 Service Health Notification

Microsoft

Microsoft Teams service alert

Incident information

Title: Any user may experience timeouts when joining conferences calls via PSTN
ID: TM221183

Status

Service Degradation

Details

Title: Any user may experience timeouts when joining conferences calls via PSTN

User Impact: Any user may experience timeouts when joining conferences calls via Public Switched Telephone Network (PSTN).

More info: Users may experience a delay of up to 15 seconds before being unable to join a conference.

Current status: We're analyzing diagnostic data to determine the next troubleshooting steps.

Scope of impact: Your organization is affected by this event, and impact is specific to approximately 2% of users served through the affected infrastructure.

Next update by: Monday, August 31, 2020, at 4:00 PM UTC

Thank you,
The Microsoft team

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Microsoft Corporation
One Microsoft Way
Redmond, WA USA 98052

Saturday, August 29, 2020

M365 Service Health Notification

Microsoft

Microsoft 365 suite service alert

Incident information

Title: Unable to access the Microsoft 365 admin center
ID: MO220847

Status

Post-Incident Report Published

Details

A post-incident report has been published.

Thank you,
The Microsoft team

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Microsoft Corporation
One Microsoft Way
Redmond, WA USA 98052

Friday, August 28, 2020

M365 Service Health Notification

Microsoft

Exchange Online service alert

Incident information

Title: A small amount of users may be unable to sign in to the Outlook mobile app
ID: EX221135

Status

Service Degradation

Details

Title: Approximately 3% of users may be unable to sign in to the Outlook mobile app

User Impact: Users may be unable to sign in to the Outlook mobile app.

More info: Users may also be unable to see profile images and may be unable to update images.

Current status: We're analyzing system error logs to determine possible underlying causes of impact and formulate a mitigation strategy.

Scope of impact: Impacted is limited to approximately 3% of users serviced by the affected infrastructure.

Next update by: Saturday, August 29, 2020, at 2:30 AM UTC

Thank you,
The Microsoft team

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Microsoft Corporation
One Microsoft Way
Redmond, WA USA 98052