Fix Nginx Upstream Connection Refused in Proxy Pass
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 Nginx Redirect Loop: Permanent Solutions
You're trying to reach a site, and the browser keeps bouncing between two URLs until it gives...
How to Resolve Permission Denied Errors with pip install
If you see PermissionError: [Errno 13] Permission denied while running pip ins...
Fix Nginx Configuration Test Failure for Upstream Directive
When you run nginx -t and get an error involving the upstream directive...
Clear Windows Explorer Cache to Fix Restarting Issues
If Windows Explorer keeps restarting unexpectedly—your taskbar disappears and reappears, or your ...
How to Resolve Port Already in Use in Docker Compose
When you run docker compose up and get an error like port is already allocated...
Issue queue
SitemapVS Code terminal won't open on Windows 10
Cloudflare Full Strict SSL: Origin Certificate Fixes
Cloudflare 522 Plugin Conflict Troubleshooting
VS Code IntelliSense Broken in WSL – How to Fix
How to Stop Discord Black Screen from Chrome GPU Acceleration
How to Resolve Docker Network and Permission Errors
Fix Docker Build Context Canceled Error in Docker Desktop
Windows 11 Upgrade Hangs at 99%: Troubleshooting Guide
Chrome Hardware Acceleration Fix for Black Screen
How to Fix Node Version Incompatibility with npm Packages
Fixing Infinite Redirect Loops with Nginx and WordPress
How to Update Git Remote Origin URL
Cloudflare Full Strict SSL: Origin Certificate Fixes
Cloudflare 522 Plugin Conflict Troubleshooting
VS Code IntelliSense Broken in WSL – How to Fix
How to Stop Discord Black Screen from Chrome GPU Acceleration
How to Resolve Docker Network and Permission Errors
Fix Docker Build Context Canceled Error in Docker Desktop
Windows 11 Upgrade Hangs at 99%: Troubleshooting Guide
Chrome Hardware Acceleration Fix for Black Screen
How to Fix Node Version Incompatibility with npm Packages
Fixing Infinite Redirect Loops with Nginx and WordPress
How to Update Git Remote Origin URL