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Fix Cloudflare DNS Not Working with VPN Connection - Resolving Windows Security Version Mismatch Errors-How to Break Windows Defender Login Loop with Registry

Updated 2026-06-13 14:31:05developer-tools
Fix Cloudflare DNS Not Working with VPN Connection - Resolving Windows Security Version Mismatch Errors-How to Break Windows Defender Login Loop with Registry
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.