Fix Chrome Profile Network Error: Unable to Connect - Fix Windows Defender Threat Service Permission Denied Error-CMD 404 Error Troubleshooting Guide

Updated 2026-06-14 03:08:39developer-tools
Fix Chrome Profile Network Error: Unable to Connect - Fix Windows Defender Threat Service Permission Denied Error-CMD 404 Error Troubleshooting Guide
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.