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Problem Symptom: Some Microsoft Teams users reported CAA301F7 errors when trying to sign in to their Microsoft Teams account. The detailed error message is as below:
We’re sorry — we’ve run into an issue.
Restart
If that doesn’t work, try signing out and back in.
Error code — caa301f7
There’s a more permanent way to sign in to Microsoft Teams. If you’re having trouble completing the process, talk to your IT admin.
Follow the below solution steps to resolve Microsoft Teams sign in error CAA301F7 on Windows 10.
Content Summary
Potential Causes
Pre-check
Solution 1: Start Microsoft Teams with run as administrator option
Solution 2: Remove Microsoft Teams login credentials information
Solution 3: Delete Microsoft Teams app cache
Solution 4: Turn off Windows Defender Firewall
Solution 5: Enable WS-Trust 1.3 for Desktop Client SSO
Solution 6: Reinstall Microsoft Teams application
Reference
Potential Causes
- Weak Wi-Fi signal, limited Internet connection, or slow network.
- App cache interfering with the current Teams session.
- Blocked by Antivirus or Firewall.
- Enabling Microsoft Teams in a federated setup with ADFS.
Originally published at https://pupuweb.com on August 9, 2021.