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Nginx Upstream Connection Refused: Diagnosis and Fixes - Fix Nginx HTTP to HTTPS Redirect Loop Error-How to Restore Missing System Tray Icons on Windows

Updated 2026-07-28 13:01:33office-tools
Nginx Upstream Connection Refused: Diagnosis and Fixes - Fix Nginx HTTP to HTTPS Redirect Loop Error-How to Restore Missing System Tray Icons on Windows
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.