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How to Fix Cloudflare Flexible SSL Redirect Loop - Windows Defender 504 Gateway Timeout Fix-Troubleshooting Windows Security Proxy Permission Denied

Updated 2026-06-13 15:19:02developer-tools
How to Fix Cloudflare Flexible SSL Redirect Loop - Windows Defender 504 Gateway Timeout Fix-Troubleshooting Windows Security Proxy Permission Denied
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.