Fixing Nginx 502 Bad Gateway with Docker and Load Balancers
If you're running Nginx as a reverse proxy or load balancer in a Docker setup, a 502 Bad Gate...
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 Wi-Fi No Internet by Disabling IPv6
If your Windows 11 PC connects to Wi-Fi but shows 'No internet' while other devices work ...
Fix Docker Hub Access Denied: Pull Image Not Working
You run docker pull and see access denied or denied: requested ac...
Fixing Nginx Permission Denied Due to SELinux Context
You've configured nginx, but when you try to access your site, you see a 403 Forbidden<...
Fix Git Push Rejected Non Fast Forward Remote Error
You run git push and get: ! [rejected] main -> main (non-fast-forward) erro...
Fix Cloudflare Origin Certificate Error After SSL Change
You changed your SSL/TLS setting in Cloudflare (for example, from Flexible to Full or Full Strict...
Issue queue
SitemapResolve JavaScript Heap Out of Memory in Node
Fix Windows Security App Not Opening After System Reset
Taskbar Icons Missing After Sign Out: Fixes
Fixing Common pnpm Workspace Setup Issues
Cloudflare Full Strict SSL: Origin Server Fixes
Fix 'docker network not found' Error on Mac
How to Resolve Update Error 0x80070005
Fix Nginx Permission Denied Errors on Ubuntu
Fix 'docker network not found' After Prune
Resolve Permission Denied During Git Merge
Docker Desktop Engine Keeps Crashing Fix
Nginx Redirect Loop: Server Block Fix
Fix Windows Security App Not Opening After System Reset
Taskbar Icons Missing After Sign Out: Fixes
Fixing Common pnpm Workspace Setup Issues
Cloudflare Full Strict SSL: Origin Server Fixes
Fix 'docker network not found' Error on Mac
How to Resolve Update Error 0x80070005
Fix Nginx Permission Denied Errors on Ubuntu
Fix 'docker network not found' After Prune
Resolve Permission Denied During Git Merge
Docker Desktop Engine Keeps Crashing Fix
Nginx Redirect Loop: Server Block Fix