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Sign in loop on Microsoft apps

Isaac Pacheco 0 Reputation points
2025-11-17T21:07:35.6266667+00:00

When i try to log into Microsoft apps, specifically Microsoft Teams, there is an endless sign in loop

Microsoft Teams | Microsoft Teams Free | Sign up and Sign in | Sign in
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  1. John Carl Nazario 8,540 Reputation points Independent Advisor
    2025-11-17T21:42:48.2+00:00

    Hi Isaac, the endless sign-in loop in Microsoft apps like Teams usually happens because of cached credentials or authentication issues. First, try signing in through the Teams web app at https://teams.live.com to confirm if the issue is only with the desktop app. Second, clear the Teams cache by quitting Teams and deleting the contents of %appdata%\Microsoft\Teams, then restart the app. Third, go to Settings > Accounts > Access work or school, disconnect your Microsoft 365 account, reboot, and reconnect it. Fourth, clear stored credentials in Windows Credential Manager under Control Panel > User Accounts > Credential Manager. Fifth, update Teams and Windows to the latest version. If you use a VPN or proxy, disable it temporarily as it can interfere with authentication. If the problem persists, reinstall Teams or run this PowerShell command to re-register AAD Broker Plugin:

    Add-AppxPackage -Register "C:\Windows\SystemApps\Microsoft.AAD.BrokerPlugin_cw5n1h2txyewy\Appxmanifest.xml" -DisableDevelopmentMode -ForceApplicationShutdown

    This often fixes login loops caused by Azure authentication issues.

    If this helps, please mark the answer as accepted so others can find it too.

    -Carl

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