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Fix Nginx Config Test Fails with 'upstream host not found' - Windows Terminal 502 Error Guide-How to Fix Windows Security Issues on a Mac

2026-06-13 15:52:42cloud-software
Fix Nginx Config Test Fails with 'upstream host not found' - Windows Terminal 502 Error Guide-How to Fix Windows Security Issues on a Mac

Final checklist

  • Confirm that the same symptom is gone after a restart or refresh.
  • Keep the smallest working change and undo temporary diagnostic settings.