How to Fix Cloudflare 521 Error with Wildcard Subdomains - Edge Sync Configuration Checklist: Step-by-Step Guide-Windows 11 WiFi No Internet? Antivirus May Be Blocking It
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.