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Fix PowerShell Invoke-WebRequest Network Errors Behind a Proxy - Fix Windows Activation Error 0x800704cf: Cannot Connect to Server-Disable Windows Defender Real-Time Protection via Group Policy

Updated 2026-06-15 07:23:43browser-issues
Fix PowerShell Invoke-WebRequest Network Errors Behind a Proxy - Fix Windows Activation Error 0x800704cf: Cannot Connect to Server-Disable Windows Defender Real-Time Protection via Group Policy
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.