Microsoft 365 sign-in issues [resolved]

9/28/20, 8:15pm --

Microsoft engineers have determined that a specific portion of their infrastructure is not processing authentication requests in a timely manner.

They are pursuing mitigation steps for the issue, as well as rerouting traffic to alternate systems to provide further relief to the affected users.


9/28/20, 7:14pm --

Microsoft engineers identified that reverting the recent change did not alleviate sign-in issues to Microsoft services as expected.

They are now rerouting traffic to alternate infrastructure to improve the user experience while continuing to investigate the issue.


9/28/20, 5:54pm --

Microsoft engineers have completed reverting the change which was likely causing sign-in issues and are monitoring to ensure services are recovering.


9/28/20, 5:20pm --

Microsoft engineers have identified and are reverting a recent change to the service which may be causing or contributing to sign-in issues.


9/28/20, 4:56pm --

Microsoft engineers are investigating a sign-in issue affecting access to multiple Microsoft 365 services.

Further information will be provided as details emerge.