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 listHow to Fix Git Merge Conflicts When Pulling from Remote
When you run git pull and see a merge conflict, it means your local changes and the ...
Windows Explorer Keeps Restarting in Windows 11: Fixes
If Windows Explorer keeps restarting on your Windows 11 PC, you'll see the taskbar and deskto...
VS Code Debugger Not Stopping at Breakpoints on Windows: Fixes
You set breakpoints in VS Code, start debugging, and the code runs right past them. This is a com...
Fix Cloudflare 521 Error: DNS Configuration Problem
If you see a Cloudflare 521 error page, it means Cloudflare's servers are unable to connect t...
Windows 11 Update Stuck at 0%? Here's How to Fix It
You click "Check for updates" and see the download sitting at 0% for minutes or hours. Th...
Topic paths
Quick titles
Resolve Docker Compose Nginx Port ConflictResolving pnpm ENOENT Error in Node.js ProjectsDebugging Nginx Redirect Loop in Server BlockHow to Fix Nginx Redirect Loop 302 ErrorsHow to Fix VS Code Permission Denied on Every FileVS Code Git Changes Missing from Source ControlTroubleshoot Windows Cannot Access \\computer\shareNginx proxy_pass Configuration Test Error Guide