Fix Nginx Upstream Connection Refused in Proxy Pass
When Nginx returns a 502 Bad Gateway or logs upstream connection refused
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesDocker Compose Port Conflict: Quick Fix Guide
You try to run docker compose up and get an error like port is already allocat...
How to Fix Chrome Startup Crash by Disabling Extensions
If Chrome crashes as soon as you open it, a misbehaving extension is often the culprit. Extension...
How 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 ...
Docker Compose 'Network Not Found' Error Fix
When running docker compose up, you might see an error like:
network "my...
How to Fix Permission Denied Error in Python pip
When you run pip install somepackage and see PermissionError: [Errno 13] Permi...
Issue queue
SitemapNginx Redirect Loop Troubleshooting Guide
How to Fix Permission Denied Errors in VS Code on Linux
Chrome Extensions Not Loading in Incognito: How to Fix
Fix Windows Update Error 0x800f081f After SFC ScanNow
Fix Explorer Restart Loop by Disabling Shell Extensions
Git Detached HEAD: How to Fix and Prevent
Fix Remote Desktop Connection Failed Due to Network Level Authentication
Fix Origin Server Errors for Wildcard Subdomains
Nginx Configuration Test Failed: Location Block Fix
Docker Compose 'Network Not Found' Error Guide
Resolve Git Non-Fast-Forward Push Error
Resolve Chrome Access Violation at Launch
How to Fix Permission Denied Errors in VS Code on Linux
Chrome Extensions Not Loading in Incognito: How to Fix
Fix Windows Update Error 0x800f081f After SFC ScanNow
Fix Explorer Restart Loop by Disabling Shell Extensions
Git Detached HEAD: How to Fix and Prevent
Fix Remote Desktop Connection Failed Due to Network Level Authentication
Fix Origin Server Errors for Wildcard Subdomains
Nginx Configuration Test Failed: Location Block Fix
Docker Compose 'Network Not Found' Error Guide
Resolve Git Non-Fast-Forward Push Error
Resolve Chrome Access Violation at Launch