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Fix Outlook Version Mismatch Error Code - Resolve Nginx 502 Bad Gateway PHP-FPM Errors-Troubleshooting Windows Defender Proxy Connection Issues

Updated 2026-06-15 01:07:54windows-fixes
Fix Outlook Version Mismatch Error Code - Resolve Nginx 502 Bad Gateway PHP-FPM Errors-Troubleshooting Windows Defender Proxy Connection Issues
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.