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Windows Defender Connection Refused: Troubleshooting Checklist - Cargo Build Permission Denied Error on Linux: Solutions-Resolve 'Windows Defender Firewall Has Blocked' Notification

2026-06-13 14:19:09
Windows Defender Connection Refused: Troubleshooting Checklist - Cargo Build Permission Denied Error on Linux: Solutions-Resolve 'Windows Defender Firewall Has Blocked' Notification

Result check

  • Keep one change per test run so you know which step helped.
  • Undo temporary changes after the issue is confirmed.