Fix Nginx Upstream Connection Refused in Proxy Pass
When Nginx returns a 502 Bad Gateway or logs upstream connection refused
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix Edge Sync Not Working on Android: Step-by-Step
You open Microsoft Edge on your Android phone expecting your bookmarks, passwords, and open tabs ...
Fixing Cloudflare Wildcard Subdomain Permissions Denied Errors
You set up a wildcard DNS record in Cloudflare, but requests to subdomains return a permissions d...
How to Fix Windows Update Error 0x80070002 with a Clean Boot
If you see error 0x80070002 when running Windows Update, it usually means a file or resource that...
Fix Nginx 502 Bad Gateway in Docker Containers
An Nginx 502 Bad Gateway error when proxying to a Docker container usually means Nginx cannot rea...
Fix Windows Update Service Not Running with DISM Restore Health
You try to run DISM /Online /Cleanup-Image /RestoreHealth and get an error saying th...
Topic paths
Quick titles
How to Update or Remove Git Remote OriginVSCode Git Auth Failed: How to Reset CredentialsNginx Upstream Connection Refused Timeout FixHow to Use Python Venv in VS CodeHow to Fix Chrome Status Access Violation on Windows 10Python UnicodeDecodeError When Listing DirectoryCloudflare DNS Propagation Stuck for www RecordGit Merge Conflict Permission Denied Fix Guide