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Fix Chrome 504 Gateway Timeout When Using a VPN - Port 1688 Already Allocated – Fix Windows Activation-Windows 10 License Activation Troubleshooting Guide

Updated 2026-06-13 23:08:48developer-tools
Fix Chrome 504 Gateway Timeout When Using a VPN - Port 1688 Already Allocated – Fix Windows Activation-Windows 10 License Activation Troubleshooting Guide
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.