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Fix Windows Defender Connection Refused or Permission Denied Errors - How to Stop Redirect Loop with Cloudflare SSL-How to Fix Windows Update Error 0x80070643

Updated 2026-06-13 14:34:54office-tools
Fix Windows Defender Connection Refused or Permission Denied Errors - How to Stop Redirect Loop with Cloudflare SSL-How to Fix Windows Update Error 0x80070643
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.