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Fix 'Port Already Allocated' Error in Windows Defender - Fix Windows Security 504 Gateway Timeout During Windows Update-Ubuntu 22.04 Microsoft Store Guide

Updated 2026-06-14 01:44:50windows-fixes
Fix 'Port Already Allocated' Error in Windows Defender - Fix Windows Security 504 Gateway Timeout During Windows Update-Ubuntu 22.04 Microsoft Store Guide
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.