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Fixing 'Connection Refused' in Command Prompt Due to Firewall - How to Resolve 502 Bad Gateway in CMD-Fix ERR_CONNECTION_RESET in Chrome with Proxy

2026-06-15 21:42:11macos-help
Fixing 'Connection Refused' in Command Prompt Due to Firewall - How to Resolve 502 Bad Gateway in CMD-Fix ERR_CONNECTION_RESET in Chrome with Proxy

Final checklist

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