Imagine this: You're in the middle of a crucial team meeting, and suddenly Microsoft Teams Error AADSTS70008 pops up, screaming "Expired Security Token" right in your face. Frustrating, right? π© Don't worry β this common authentication glitch from Azure Active Directory (AAD) is fixable with the right steps. Whether it's due to inactive sessions or token timeouts, we'll guide you through quick, effective solutions to get you back online instantly.
In this ultimate guide, you'll learn how to fix Microsoft Teams Error AADSTS70008 like a pro. Follow along, and you'll be collaborating smoothly again. Let's dive in! β‘οΈ
What is Microsoft Teams Error AADSTS70008?
AADSTS70008 is an Azure AD Security Token Service (STS) error indicating that your authorization code or security token has expired due to inactivity or session limits. It blocks sign-ins to Teams, showing messages like "The provided authorization code has expired."
This isn't a bug in Teams itself but ties to Microsoft's OAuth 2.0 flow. Common in browsers, desktop apps, or mobile. Good news? 90% of cases resolve with basic troubleshooting. β
Top Causes of Expired Security Token in Teams
- β Prolonged inactivity during login.
- β Corrupted browser cache or cookies.
- β οΈ Network/VPN interference.
- π Out-of-sync system clock.
- π± Outdated Teams app or browser.
Step-by-Step: How to Fix Microsoft Teams Error AADSTS70008
Ready to banish this error? Start with the simplest fixes and escalate if needed. Most users succeed in under 5 minutes! β±οΈ
1οΈβ£ Quick Sign-Out and Sign-In (Fastest Fix)
- Open Teams and click your profile picture > Sign out.
- Close Teams completely (use Task Manager on Windows: Ctrl+Shift+Esc).
- Reopen and sign in fresh. Tokens refresh automatically.
Pro Tip: Use incognito/private mode for browser-based Teams to bypass cache issues.
2οΈβ£ Clear Cache and Cookies
Stale data is the #1 culprit for expired security token errors.
| Platform | Steps |
|---|---|
| Windows Teams App | %appdata%\Microsoft\Teams > Delete contents of these folders: Cache, GPUCache, IndexedDB, Local Storage, tmp. |
| Browser (Chrome/Edge) | Settings > Privacy > Clear browsing data (Cookies + Cached images). Restart browser. |
| macOS | ~/Library/Application Support/Microsoft/Teams > Delete cache folders. |
After clearing, relaunch Teams. Boom β fixed for most! π
3οΈβ£ Sync Your System Clock
Token validation relies on precise time. Mismatch? Error city.
- Windows: Settings > Time & Language > Sync now.
- macOS: System Preferences > Date & Time > Auto-set.
- Mobile: Enable automatic time in settings.
4οΈβ£ Update or Reinstall Teams
Ensure you're on the latest Teams version. Outdated apps trigger token issues.
- Check for updates: Profile > Check for updates.
- No luck? Uninstall via Control Panel/Add/Remove Programs, then download fresh from official site.
5οΈβ£ Advanced Fixes for Persistent Errors
- Disable VPN/Proxy: Temporarily turn off β they alter auth flows.
- Reset Teams via Command: Run as admin:
"%programfiles(x86)%\Microsoft\Teams\Update.exe" --uninstall --msithen reinstall. - Admin Console (Enterprise): Check Conditional Access policies in Azure AD for token lifetime settings. Extend if needed.
- Browser-Specific: Disable extensions like ad-blockers during login.
For official troubleshooting, see Microsoft's guide: Teams Sign-In Issues.
Prevent Teams AADSTS70008 from Returning
Stay ahead:
- β Sign in weekly to keep tokens active.
- β Use the latest Teams client always.
- π Enable auto-sync time and avoid VPNs during auth.
- π± Switch to Teams web if app glitches persist.
Still Stuck? Next Steps
If these don't work, gather logs: Help > Download logs in Teams, then submit a ticket via Teams Admin Center or contact support. You're almost there β persistence pays off! π
Congrats on fixing your Microsoft Teams Error AADSTS70008: Expired Security Token! Share this guide if it helped a colleague. What's your go-to fix? Drop a comment below. Happy teaming! π
