Microsoft 365 Alert : Service degradation – Microsoft Teams – Some users may be experiencing intermittent failures within the Teams service – RESOLVED

26/05/2022 09:25:00 AM (BST)

Microsoft Reference : TM384932  

NHSmail Reference : INC29181116

Issue Status : RESTORED

Issue Description : Users may have been experiencing intermittent failures within the Microsoft Teams service.

More info : The following scenarios may have been impacted:
-Meeting scenarios
-Calendar scenarios
-People and profile
-End Retrievals
-Platform Apps

Scope of impact : Your organization was affected by this event, and some users attempting to use the Teams service may have been impacted.

Final Update : 26/05/2022 09:25:00 AM – Microsoft has determined that a section of service infrastructure, that facilitates activities and alerts within Microsoft Teams, was performing below acceptable performance thresholds. They have redirected user traffic to alternate infrastructure and confirmed that impact has been remediated after monitoring the environment.

Root cause : A section of service infrastructure, that facilitates activities and alerts within Microsoft Teams, was performing below acceptable performance thresholds.

Next steps : Microsoft are analyzing performance data and trends on the affected infrastructure to help prevent this problem from happening again.