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Home / windows-fixes / Fix PuTTY Connection Refused: Check SSH Service - WSL Ubuntu Network Troubleshooting Guide-How to Fix Invalid Windows Terminal settings.json

Fix PuTTY Connection Refused: Check SSH Service - WSL Ubuntu Network Troubleshooting Guide-How to Fix Invalid Windows Terminal settings.json

Updated 2026-06-13 12:30:20windows-fixes
Fix PuTTY Connection Refused: Check SSH Service - WSL Ubuntu Network Troubleshooting Guide-How to Fix Invalid Windows Terminal settings.json
Before changing system settings, save your work and note the exact error text so you can compare results after each step.

Extra verification checklist

  • Restart the affected app after changing permissions or configuration files.
  • Test the same workflow in a clean browser profile or a temporary user account.
  • Compare the result on another network if the error may be connection related.

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