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Home / macos-help / Fix 'UFW Status Shows Port Not Active' Error - Windows Security for Ubuntu Installation Checklist-Resolve Windows Defender Authentication Failure from Group Policy

Fix 'UFW Status Shows Port Not Active' Error - Windows Security for Ubuntu Installation Checklist-Resolve Windows Defender Authentication Failure from Group Policy

2026-06-13 13:43:25macos-help
Fix 'UFW Status Shows Port Not Active' Error - Windows Security for Ubuntu Installation Checklist-Resolve Windows Defender Authentication Failure from Group Policy

Final checklist

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