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Fix 'Putty Connection Refused' Error on Localhost - Windows Update 404 Error Fix Guide-Troubleshooting ESXi Network Adapter VLAN Setup

Updated 2026-06-14 03:56:32developer-tools
Fix 'Putty Connection Refused' Error on Localhost - Windows Update 404 Error Fix Guide-Troubleshooting ESXi Network Adapter VLAN Setup
Likely symptom
Likely cause
Safe rollback

Verification route

  • Repeat the original action, not only a simplified test case.
  • Restart the app or reload the service after configuration changes.