User impact: Users may have been unable to enroll iOS and MacOS devices in the Microsoft Intune service.

Final status: We’ve confirmed through our extended monitoring and through confirmation from some formerly affected users the issue is now resolved.

Scope of impact: Impact was specific to some users who are served through the affected infrastructure attempting to enroll iOS and MacOS devices in Microsoft Intune.

Start time: Monday, May 15, 2023, at 12:00 AM UTC

End time: Monday, May 15, 2023, at 5:58 PM UTC

Root cause: Mitigative efforts resolving a recent authentication configuration issue didn’t reflect as expected in the cache. This led to the retrieval of problematic authentication configuration information when users attempted to enroll, which resulted in impact. 

Next steps:
– We’re investigating why the cache didn’t reflect updated authentication configuration information so we can ensure the issue doesn’t reoccur in the future.

This is the final update for the event.