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Fix 'Microsoft Teams Proxy Authentication Required' Error - How to Stop Windows Terminal from Asking to Sign In Repeatedly-Troubleshooting Outlook Sync After Initial Setup

2026-06-14 02:14:42office-tools
Fix 'Microsoft Teams Proxy Authentication Required' Error - How to Stop Windows Terminal from Asking to Sign In Repeatedly-Troubleshooting Outlook Sync After Initial Setup

Final checklist

  • Confirm that the same symptom is gone after a restart or refresh.
  • Keep the smallest working change and undo temporary diagnostic settings.