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How to Fix Windows Security Network Error on Startup - How to Clear Microsoft Teams Cache to Fix Port Allocation Error-Windows 11: Turn On Windows Defender

Updated 2026-06-13 22:30:45macos-help
How to Fix Windows Security Network Error on Startup - How to Clear Microsoft Teams Cache to Fix Port Allocation Error-Windows 11: Turn On Windows Defender
Likely symptom
Likely cause
Safe rollback

Verification route

  • Repeat the original action, not only a simplified test case.
  • Restart the app or reload the service after configuration changes.