0xCAA70004 Severity: High Token could not be refreshed
Teams cannot refresh the auth token and reports 0xCAA70004. A clean sign-in reset usually fixes it.
Last verified:
Affected systems
windows macos
Symptoms
- Teams reports 0xCAA70004 on launch
- Sign-in is rejected even though the password is correct
- MFA prompt appears repeatedly
Possible causes
- Expired refresh token in cache
- Tenant MFA settings changed
- Corrupt WebView2 component
Solutions
1.Reset web credentials
-
Open Credential Manager in Windows.
-
Delete all entries containing 'Microsoft' or 'msTeams'.
-
Restart Teams and sign in again.
2.Repair the WebView2 runtime
-
Open 'Apps and Features' and find 'Microsoft Edge WebView2 Runtime'.
-
Click 'Modify' and choose 'Repair'.
-
Reboot the machine.
3.Clear the Teams cache fully
-
Quit Teams via Task Manager.
-
Delete this folder.
%localappdata%\Packages\MSTeams_8wekyb3d8bbwe\LocalCache -
Launch Teams and sign in fresh.
If the problem persists after these steps, ask your IT to perform a fresh token reset in the Microsoft Entra admin center.