Fix Teams Rooms Device Signs Out on a Teams Rooms Android Device

Your Teams Rooms Android device keeps signing out, forcing you to re-enter credentials and disrupting scheduled meetings. This problem often stems from stale authentication tokens, device policy settings, or network conditions that block background refresh. In this article, you will learn the exact steps to diagnose the root cause, apply a permanent fix, and handle related sign-out patterns on Teams Rooms for Android.

Why a Teams Rooms Android Device Signs Out Repeatedly

Teams Rooms on Android uses the device code flow to authenticate with Microsoft Entra ID. The device receives an access token and a refresh token. The refresh token is valid for a limited period, usually around 90 days, but it can be revoked earlier by several conditions. When the refresh token fails, the device must re-authenticate, which appears as a sign-out event.

The most common root cause is a Conditional Access policy that does not exempt the Teams Rooms device. If your tenant has Conditional Access policies requiring multi-factor authentication or blocking certain locations, the device code flow may not meet those requirements. The token refresh then fails, and the device signs out.

Another frequent cause is a stale device record in the Teams admin center. If the device was re-provisioned or its hardware ID changed, the old record can cause authentication conflicts. Network issues, such as a proxy that blocks the required endpoints, can also interrupt token refresh.

Token Refresh and Expiry Details

Access tokens expire after about one hour. The device uses the refresh token to get a new access token without user interaction. If the refresh token is invalid, the device cannot obtain a new access token and signs out. Refresh tokens can be invalidated by password changes, admin revocations, or security events.

Conditional Access and Exclusions

Conditional Access policies that require MFA or device compliance often apply to all users and devices. Teams Rooms devices do not support interactive MFA prompts. Therefore, you must exclude the device’s service account from those policies or create a separate policy for the device.

Steps to Diagnose and Fix the Sign-Out Issue

1. Check the device health in the Teams admin center
   Go to Teams admin center > Teams devices > Android devices. Find the affected device and check the status column. If the status shows “Needs attention” or “Offline,” click the device name to see the last sign-in time and error details.
2. Review the device’s sign-in logs in Entra ID
   Sign in to the Entra admin center with an account that has Global Admin or Security Admin rights. Go to Identity > Monitoring & health > Sign-in logs. Filter by the device’s user principal name and look for failed sign-ins with error code 50076 or 50097. These codes indicate Conditional Access failures.
3. Check Conditional Access policies that affect the device account
   In the Entra admin center, go to Protection > Conditional Access > Policies. Review each policy that applies to the user account used on the Teams Rooms device. Note any policy that requires MFA, device compliance, or trusted locations.
4. Exclude the device account from MFA and device compliance policies
   If a policy requires MFA or device compliance, edit that policy and add the device’s service account to the Exclude list. Alternatively, create a new Conditional Access policy that targets only the device account and allows access without MFA. Save the changes and wait a few minutes for propagation.
5. Restart the Teams Rooms device remotely
   In the Teams admin center, go to Teams devices > Android devices, select the device, and click Restart. This clears temporary issues and forces the device to re-authenticate.
6. Sign out and sign in again on the device
   On the device’s touchscreen, go to Settings > Accounts and select Sign out. Then sign in again with the device account credentials. This clears any corrupted local token cache.
7. Verify network endpoints are reachable
   Ensure the device can reach the Microsoft 365 endpoints listed in the official Microsoft documentation for Teams Rooms. Common endpoints include login.microsoftonline.com and graph.microsoft.com. If you use a proxy, allow these domains and all subdomains.
8. Re-provision the device if the issue persists
   If the device still signs out, delete the device record in the Teams admin center and re-provision it using the device’s setup app. This resets the device’s identity and often resolves persistent authentication loops.

If Teams Rooms Still Signs Out After the Main Fix

Teams Rooms Android device signs out every day at the same time

This pattern often indicates a Conditional Access policy that blocks token refresh during a specific time window. Check the sign-in logs for the exact time of failure. If a policy restricts access to business hours, the refresh token fails outside those hours. Adjust the policy to allow the device account 24/7 access.

Teams Rooms device signs out after a password change

If the device account password is changed, the refresh token becomes invalid. Update the password in the Teams admin center under the device’s configuration. Then sign out and sign in again on the device.

Teams Rooms device shows a “device not compliant” error

This error appears when a Conditional Access policy requires device compliance, but the Android device is not enrolled in Intune. Exclude the device account from that policy, or enroll the device in Intune if you need compliance enforcement.

Teams Rooms Android vs Teams Rooms Windows: Sign-Out Behavior

Item	Teams Rooms on Android	Teams Rooms on Windows
Authentication method	Device code flow with Microsoft Entra ID	Modern authentication with interactive sign-in
Common sign-out cause	Conditional Access policy blocking token refresh	Expired device account password
Remote management	Teams admin center > Teams devices > Android devices	Teams admin center > Teams devices > Windows devices
Re-provisioning method	Reset via device setup app	Use the Teams Rooms Pro Management portal

After applying the steps in this article, your Teams Rooms Android device should maintain a stable sign-in state. Check the sign-in logs weekly to catch any new Conditional Access failures early. For deeper control, enable the Teams Rooms Pro Management portal to monitor device health across your fleet.