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Fix Cloudflare SSL Flexible Redirect Loop on Apache - Remote Desktop Authentication Error Occurred – Troubleshooting Guide-Checklist for Resolving Windows Security 504 Gateway Timeout

Updated 2026-06-14 05:11:33developer-tools
Fix Cloudflare SSL Flexible Redirect Loop on Apache - Remote Desktop Authentication Error Occurred – Troubleshooting Guide-Checklist for Resolving Windows Security 504 Gateway Timeout
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.