Fix Nginx Upstream Connection Refused Socket Error
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 notesFix Chrome Black Screen After Update: Hardware Acceleration
After a Chrome update, some users see a black screen when browsing or launching the browser. The ...
Fix VSCode Git Auth Failed: Expired Token
You're working in Visual Studio Code, try to push or pull, and see an error like "Git: Au...
Fix npm Run Build Out of Memory Errors
If your npm run build fails with an out-of-memory error, you're not alone. This ...
Fix Edge Sync Not Working on Android: Step-by-Step
You open Microsoft Edge on your Android phone expecting your bookmarks, passwords, and open tabs ...
How to Fix Cloudflare 522 Error When Website Won't Load
Cloudflare 522 error means your origin server is not responding within the allowed time. This usu...
Issue queue
SitemapDebugging C++ in VS Code: Breakpoints Not Hit
Cloudflare Origin Certificate Permission Denied: How to Fix
Fix Taskbar Icons in Windows 10 by Rebuilding Cache
How to Fix Externally Managed Environment Error in Python venv
Windows 11 Update Stuck at 0%: How to Fix
Windows Update 0x80070002 After Update: Fixes
Fix Windows Defender Real-Time Protection Disabled
Troubleshooting Docker Network Not Found in Linux
Windows Explorer Restarting Checklist for Advanced Users
Fix Windows 11 Upgrade Assistant Not Completing
Docker Build Canceled on WSL2: How to Fix
Resolve Windows 11 Blue Screen Caused by Cumulative Update
Cloudflare Origin Certificate Permission Denied: How to Fix
Fix Taskbar Icons in Windows 10 by Rebuilding Cache
How to Fix Externally Managed Environment Error in Python venv
Windows 11 Update Stuck at 0%: How to Fix
Windows Update 0x80070002 After Update: Fixes
Fix Windows Defender Real-Time Protection Disabled
Troubleshooting Docker Network Not Found in Linux
Windows Explorer Restarting Checklist for Advanced Users
Fix Windows 11 Upgrade Assistant Not Completing
Docker Build Canceled on WSL2: How to Fix
Resolve Windows 11 Blue Screen Caused by Cumulative Update