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Fix Chrome ERR_CONNECTION_RESET Caused by Antivirus - Chrome DNS Probe NXDOMAIN Error Troubleshooting-Checklist for Fixing Windows Security Startup Failure

Updated 2026-06-13 15:26:36developer-tools
Fix Chrome ERR_CONNECTION_RESET Caused by Antivirus - Chrome DNS Probe NXDOMAIN Error Troubleshooting-Checklist for Fixing Windows Security Startup Failure
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.