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Fixing Nginx Upstream Connection Refused and Permission Denied - How to Show Bluetooth in Device Manager Windows 11-Fix Windows Defender Real-Time Protection Configuration Error

Updated 2026-07-28 12:32:51cloud-software
Fixing Nginx Upstream Connection Refused and Permission Denied - How to Show Bluetooth in Device Manager Windows 11-Fix Windows Defender Real-Time Protection Configuration Error
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.