How to Fix Nginx 502 Bad Gateway in Docker - Troubleshooting Nginx Upstream Refused-Windows 11 Not Detecting Bluetooth Device: How to Fix

Updated 2026-07-28 15:10:17backup-recovery
How to Fix Nginx 502 Bad Gateway in Docker - Troubleshooting Nginx Upstream Refused-Windows 11 Not Detecting Bluetooth Device: How to Fix
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.