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 VSCode Source Control Not Detecting Changes
You open the Source Control panel in Visual Studio Code, expecting to see your file changes, but ...
Windows Remote Desktop Setup Checklist: 10 Steps to Connect
You've tried to connect to another Windows PC using Remote Desktop, but you get errors like &...
Fix Windows 11 Installation Assistant Stuck at 99% SFC Scan
You're upgrading to Windows 11 using the Installation Assistant, and it hangs at 99% while ru...
Fix VSCode Permission Denied in Docker Containers
When using Visual Studio Code's Remote – Containers extension or attaching to a running Docke...
Windows 11 Installation Assistant Stuck at 99%: How to Reset and Finish
You're upgrading to Windows 11 using the Installation Assistant, and it gets stuck at 99% for...
Issue queue
SitemapCloudflare Partial DNS Propagation Troubleshooting
Fix Python Dependency Conflicts
Python pip Permission Denied: Safe Fixes Without sudo
How to Fix Nginx 502 Bad Gateway with Docker Compose Variables
Practical Node.js Garbage Collection Tuning
How to Fix Large File Push Errors in Git
Chrome Hardware Acceleration Fix for Black Screen
How to Fix Chrome Profile Sync After Update
Git Clone Timeout: Increase Timeout Settings
Fix npm run build Failed on Windows: Common Causes and Solutions
Fix npm ENOENT package.json Missing Error
Fixing Git's Non Fast-Forward Error When Pushing
Fix Python Dependency Conflicts
Python pip Permission Denied: Safe Fixes Without sudo
How to Fix Nginx 502 Bad Gateway with Docker Compose Variables
Practical Node.js Garbage Collection Tuning
How to Fix Large File Push Errors in Git
Chrome Hardware Acceleration Fix for Black Screen
How to Fix Chrome Profile Sync After Update
Git Clone Timeout: Increase Timeout Settings
Fix npm run build Failed on Windows: Common Causes and Solutions
Fix npm ENOENT package.json Missing Error
Fixing Git's Non Fast-Forward Error When Pushing