Tzhizhu
Home / browser-issues / Fix Windows Security Connection Refused Error After Network Reset - Check Which Application Is Using Remote Desktop Port (3389)-Troubleshooting Windows Security Version Mismatch

Fix Windows Security Connection Refused Error After Network Reset - Check Which Application Is Using Remote Desktop Port (3389)-Troubleshooting Windows Security Version Mismatch

Updated 2026-06-18 06:45:31browser-issues
Fix Windows Security Connection Refused Error After Network Reset - Check Which Application Is Using Remote Desktop Port (3389)-Troubleshooting Windows Security Version Mismatch
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.

Related Software Guides

Fix Microsoft Store File Locked Permission Denied Fix Microsoft Store File Locked Permission Denied How to Fix Windows Update Configuration Failed Rollback How to Fix Windows Update Configuration Failed Rollback Fix Slow Network Drive Access in PowerShell Fix Slow Network Drive Access in PowerShell Chrome Profile Setup Checklist for Beginners Chrome Profile Setup Checklist for Beginners Fix Windows Defender Error 0x80070422: Cannot Connect Fix Windows Defender Error 0x80070422: Cannot Connect Chrome Bypass Proxy for Local Addresses: How to Fix Chrome Bypass Proxy for Local Addresses: How to Fix