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Fix PowerShell WinRM Connection Refused Error - Nginx 502 Bad Gateway: A Practical Troubleshooting Guide-Windows Activation Port Conflict Firewall Fix

Updated 2026-06-17 01:14:39developer-tools
Fix PowerShell WinRM Connection Refused Error - Nginx 502 Bad Gateway: A Practical Troubleshooting Guide-Windows Activation Port Conflict Firewall Fix
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.