How to Fix Git Authentication Failed in VS Code - Docker Desktop Engine Stopped on Mac M1: Fixes That Work-Troubleshooting Cloudflare 521 Connection Error

Updated 2026-07-28 19:00:22browser-issues
How to Fix Git Authentication Failed in VS Code - Docker Desktop Engine Stopped on Mac M1: Fixes That Work-Troubleshooting Cloudflare 521 Connection Error
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.