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Home / browser-issues / Fix PuTTY Connection Refused After Server Restart - How to Fix Windows Security Network Error on Startup-Windows Defender Error: Version Mismatch and Permission Denied Fix

Fix PuTTY Connection Refused After Server Restart - How to Fix Windows Security Network Error on Startup-Windows Defender Error: Version Mismatch and Permission Denied Fix

2026-06-13 15:08:40browser-issues
Fix PuTTY Connection Refused After Server Restart - How to Fix Windows Security Network Error on Startup-Windows Defender Error: Version Mismatch and Permission Denied Fix

Final checklist

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