Microsoft 365 Message Center item MC1290834

MC1290834 - Teams Rooms sign-in failures after password reset from Pro Management Portal

Password resets via Teams Pro Management Portal may cause Teams Rooms devices to fail sign-in due to a forced password change prompt they cannot complete, leaving devices in a CannotSignIn state. Avoid resetting these passwords in PMP and manually remediate affected devices if needed.

Message Center ID

MC1290834

Category

prevent Or Fix Issue

Severity

normal

Services

Microsoft Teams

Tags

User impact, Admin impact

Published

2026-04-24

Last updated

2026-04-24

Expires

2026-05-25

[Introduction] We're investigating an issue where password resets performed in the Teams Pro Management Portal (PMP) may cause Teams Rooms devices to fail sign-in. A recent change in password reset behavior is the likely root cause and may prevent Teams Rooms devices from completing sign-in. [How this affects your organization:] Who is affected: Organizations using Teams Pro Management Portal (PMP) to manage Teams Rooms resource accounts What will happen: Password resets initiated in PMP may trigger a change password at next sign-in requirement on the account. Teams Rooms devices cannot complete interactive password change prompts. Affected devices enter a CannotSignIn state. Devices may remain signed out without automatic recovery until manually remediated. This issue primarily affects Teams Rooms resource accounts. [What you can do to prepare:] Avoid resetting Teams Rooms resource account passwords through the Pro Management Portal. If a password reset is required: Verify device sign-in immediately after the reset Manually remediate any devices that remain in a signed-out state Inform your helpdesk or support teams of this issue to reduce troubleshooting time If you experience issues, contact Microsoft Support.