Microsoft 365 Alert – Service Degradation – Microsoft Teams – Users’ Yealink E2 Microsoft Teams phones on the latest Android 15 version may be marked as noncompliant and signed out – ONGOING

Announcements Arpan Das

22/04/2026 09:03:00 AM

NHSmail Reference: INC46805833

Microsoft Reference: TM1287420

Issue Status: ONGOING

Issue Description: Users’ Yealink E2 Microsoft Teams phones on the latest Android 15 version may be marked as noncompliant and signed out.

More info: Users’ Yealink MP5X E2 Microsoft Teams devices running on firmware version 176.15.0.191 and the latest Android 15 operating system, may appear as noncompliant in Microsoft Intune.
Users on impacted devices may also lose access to resources if conditional access policies require a complaint device. For organizations using compliance-based Conditional Access policies with a 30-day grace period, affected devices may be signed out when that grace period expires.
For users to avoid impact, we recommend signing in again on the device to re-establish enrollment and generate a new certificate.
Admins may also wish to review their compliance-based Conditional Access configuration as a temporary mitigation to reduce the immediate risk of user sign-outs; however, we don’t recommend disabling Conditional Access broadly.

Current Update: 22/04/2026 08:45:00 AM– Microsoft were alerted to an issue by customer reports, indicating impact to Microsoft Teams Yealink MP5X E2 devices after upgrading to the latest Android 15 operating system. Their analysis and investigation into the affected devices and logs confirmed that the latest Android 15 operating system update has introduced a configuration issue causing impacted devices to not be able to access a necessary certificate component, leading to impact. They are working on developing an expedited fix to be deployed to all affected environments to fully resolve impact. While they work on a fix, for users to avoid impact, they recommend following the above steps listed in the More Info section.

Scope of impact: Any user whose Microsoft Teams Yealink E2 devices upgraded to the latest Android 15 operating system, may be marked as noncompliant and signed out. This section may be updated as our investigation continues.

Root cause: The latest Android 15 operating system update has introduced a configuration issue causing impacted devices to not be able to access a certificate component, leading to impact.

Next update by: Thursday, April 23, 2026, at 10:00 PM UTC