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Fix Windows 11 WiFi Connected but No Internet After Sleep - Cloudflare 521 Error: Port 443 Blocked Fixes-Resolve Error 0x80070005 with Ownership and Permissions

Updated 2026-07-28 13:12:30office-tools
Fix Windows 11 WiFi Connected but No Internet After Sleep - Cloudflare 521 Error: Port 443 Blocked Fixes-Resolve Error 0x80070005 with Ownership and Permissions
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.