Fix Nginx Upstream Connection Refused Timeout Error
When Nginx returns 502 Bad Gateway or logs upstream connection refused timeout...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesFix Windows 11 Bluetooth Driver Not Working
You're trying to connect a Bluetooth device in Windows 11, but the toggle is grayed out, devi...
Fix VS Code Source Control Not Detecting Changes on Windows 11
If you're using VS Code on Windows 11 and the Source Control panel isn't showing your fil...
Fix Python Dependency Conflicts After an Update
You updated your Python environment or a package, and now your script throws import errors or ver...
Docker Desktop Engine Stopped: Log Location & Troubleshooting
When Docker Desktop reports that the engine has stopped, you often need to check the logs to unde...
Fix Remote Desktop Certificate Errors in Windows
When you try to connect to a remote PC via Remote Desktop (RDP), you might see a warning like ...
Issue queue
SitemapFix Windows 11 WiFi Connected but No Internet After Sleep
How to Rebuild Windows Search Index Safely
Windows Security App Not Working After Reset? Try These Fixes
How to Fix Node.js OOM in Test Suites
Fix Docker 'No Space Left on Device' on Mac
Taskbar Icons Disappeared? Quick Fixes That Work
Fix Remote Desktop Certificate Errors in Windows
Resolve Chrome Status Access Violation After Update
Fix Windows Update Service Not Running with Permission Denied
Fix Docker 'network not found' Error for Custom Networks
Troubleshooting Nginx Proxy Pass Test Failures
How to Fix Merge Conflicts After Cherry-Pick
How to Rebuild Windows Search Index Safely
Windows Security App Not Working After Reset? Try These Fixes
How to Fix Node.js OOM in Test Suites
Fix Docker 'No Space Left on Device' on Mac
Taskbar Icons Disappeared? Quick Fixes That Work
Fix Remote Desktop Certificate Errors in Windows
Resolve Chrome Status Access Violation After Update
Fix Windows Update Service Not Running with Permission Denied
Fix Docker 'network not found' Error for Custom Networks
Troubleshooting Nginx Proxy Pass Test Failures
How to Fix Merge Conflicts After Cherry-Pick