Why?
Microsoft is investigating.
Impact
Login to Teams is unavailable.
Details
Information Technology will provide updates as they become available from Microsoft.
Teams cannot be opened through the application or web.
Microsoft is investigating.
Login to Teams is unavailable.
Information Technology will provide updates as they become available from Microsoft.
2/5/2020 8:30am
Microsoft determined that the root cause was an expired authentication certificate. They are reviewing authentication certificate deployment and provisioning procedures to help prevent similar problems in the future.
2/3/2020 3:53pm
While Microsoft reports that the service has largely recovered, residual impact may still be observed so they are moving select traffic to alternate infrastructure. Teams features impacted include chat history visibility and Auto Attendant functionality.
2/3/2020 12:04pm
Microsoft has deployed a new authentication certificate, and over the next hour access will gradually return. Access is currently intermittent. Teams may need to be closed and reopened in order to login.