Fix Nginx Upstream Connection Refused Socket Error
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 listNginx Redirect Loop: Common Causes and Fixes
You set up a redirect in nginx, but now your browser shows 'redirect loop' or 'too ma...
Docker Container Exits Immediately: 'Command Not Found' Fix
You start a Docker container and it exits immediately with a message like /bin/sh: 1: somec...
Docker Prune Not Freeing Enough Space: Practical Fixes
You run docker system prune -a expecting a big space recovery, but the freed space i...
Fix WiFi No Internet After Windows 11 Update
After a Windows 11 update, you might see your WiFi connected but with no internet access. This is...
Fix Git Push Rejected Non Fast Forward Rebase Error
If you see ! [rejected] and non-fast-forward after a rebase, it means y...
Topic paths
Quick titles
Troubleshooting npm Install Node Version ErrorHow to Fix node-sass Build Failed on npm installHow to Fix Nginx 'Upstream Connection Refused' ErrorHow to Fix Chrome ERR_CONNECTION_RESET When VPN Is OnDNS Probe Finished NXDOMAIN: Internet Connection but No Browsing FixChrome ERR_CONNECTION_RESET Extension FixFix Windows Security App Blocked by AntivirusFix Windows Update Component Cleanup Error 0x800f081f