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How to Fix Windows Terminal Authentication Failed Error - Stop Port in Use Errors in Windows Terminal-Troubleshooting Putty Connection Refused on Localhost

2026-06-13 19:03:34developer-tools
How to Fix Windows Terminal Authentication Failed Error - Stop Port in Use Errors in Windows Terminal-Troubleshooting Putty Connection Refused on Localhost

Final checklist

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