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Home / security-tools / Fixing Microsoft Teams Authentication Error CAA2000C - Fix Windows Activation Login Loop Stuck on Sign-In Screen-How to Handle API Rate Limits in PowerShell

Fixing Microsoft Teams Authentication Error CAA2000C - Fix Windows Activation Login Loop Stuck on Sign-In Screen-How to Handle API Rate Limits in PowerShell

Updated 2026-06-14 04:24:58security-tools
Fixing Microsoft Teams Authentication Error CAA2000C - Fix Windows Activation Login Loop Stuck on Sign-In Screen-How to Handle API Rate Limits in PowerShell
Before changing system settings, save your work and note the exact error text so you can compare results after each step.

Extra verification checklist

  • Restart the affected app after changing permissions or configuration files.
  • Test the same workflow in a clean browser profile or a temporary user account.
  • Compare the result on another network if the error may be connection related.

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