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 notesHow to Fix 'No Space Left on Device' in Docker on Ubuntu
If you see 'no space left on device' when running Docker commands on Ubuntu, the issue is...
Fixing Nginx Upstream Connection Refused on Port 443
You see "upstream connection refused" in your Nginx error log when proxying requests to p...
Rebuild Windows Search Index Without Losing Data
If Windows Search stops returning results or behaves slowly, rebuilding the index often fixes it....
VS Code Source Control Not Detecting Changes: Disable Git Fix
If VS Code stops showing file changes in the Source Control panel, Git integration may be stuck o...
Fix DNS Probe Finished NXDOMAIN Caused by Antivirus Blocking
You try to load a website and see DNS_PROBE_FINISHED_NXDOMAIN in Chrome, or simi...
Issue queue
SitemapResolve EACCES error with pnpm global install on Linux
Chrome Startup Crash Fix: Corrupt User Profile
Windows Explorer Keeps Restarting? Run SFC Scannow
How to Lower Chrome Memory Consumption
How to Get Python venv Working in VS Code Terminal
Docker Desktop Engine Stopped: WSL Issue Fix
How to Identify Extensions Causing ERR_CONNECTION_RESET
Stop Docker Build Context Canceled Errors
Fix Docker Build Context Canceled Error with Large Directories
Cherry-Pick Conflicts: Causes and Fixes
How to Turn Windows Defender Real-Time Protection Back On
How to Fix Cloudflare Error 526: Invalid Origin Certificate
Chrome Startup Crash Fix: Corrupt User Profile
Windows Explorer Keeps Restarting? Run SFC Scannow
How to Lower Chrome Memory Consumption
How to Get Python venv Working in VS Code Terminal
Docker Desktop Engine Stopped: WSL Issue Fix
How to Identify Extensions Causing ERR_CONNECTION_RESET
Stop Docker Build Context Canceled Errors
Fix Docker Build Context Canceled Error with Large Directories
Cherry-Pick Conflicts: Causes and Fixes
How to Turn Windows Defender Real-Time Protection Back On
How to Fix Cloudflare Error 526: Invalid Origin Certificate