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Fix 504 Gateway Timeout with Curl Command - Windows Defender Setup Checklist for Small Business-Outlook Port Already Allocated Error Fix

Updated 2026-06-13 23:39:17cloud-software
Fix 504 Gateway Timeout with Curl Command - Windows Defender Setup Checklist for Small Business-Outlook Port Already Allocated Error Fix
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.