How to Fix Nginx Redirect Loop 302 Errors - Resolve Chrome NET::ERR_CERT_AUTHORITY_INVALID Due to Date/Time-Troubleshoot Cloudflare 521 SSL Errors

Updated 2026-07-28 15:13:47security-tools
How to Fix Nginx Redirect Loop 302 Errors - Resolve Chrome NET::ERR_CERT_AUTHORITY_INVALID Due to Date/Time-Troubleshoot Cloudflare 521 SSL Errors
Before changing system settings, save your work and note the exact error text so you can compare results after each step.

Extra verification checklist

  • Restart the affected app after changing permissions or configuration files.
  • Test the same workflow in a clean browser profile or a temporary user account.
  • Compare the result on another network if the error may be connection related.