DNS Probe Finished NXDOMAIN: Meaning and Fixes - Troubleshoot Cloudflare 521 Error Caused by Overload-How to Fix ERR_CERT_AUTHORITY_INVALID on Android Chrome
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.