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Fix Cloudflare SSL Full Strict Permission Denied Error - Nginx Upstream Connection Refused on Port 443 Fix-How to Fix SSL Certificate Error in Chrome Caused by Antivirus

Updated 2026-07-28 13:13:46cloud-software
Fix Cloudflare SSL Full Strict Permission Denied Error - Nginx Upstream Connection Refused on Port 443 Fix-How to Fix SSL Certificate Error in Chrome Caused by Antivirus
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.