Fix Nginx 'upstream connection refused' When Talking to PHP-FPM
You're seeing upstream connection refused in your Nginx error log, and your site...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesReinstall Docker Desktop Engine Without Losing Images
If you need to reinstall Docker Desktop's engine—perhaps to fix a corrupted engine or update ...
Fix Nginx 502 Bad Gateway on Docker Ubuntu
You're running Nginx as a reverse proxy inside Docker on Ubuntu, and suddenly you see
Git LFS Configuration for Large Binary Files
When you add large binary files like images, videos, or compiled assets to a Git repository, the ...
Fix Windows 11 Blue Screen After Update with Bootable USB
After a Windows 11 update, some systems boot into a blue screen (BSOD) or crash loop. This usuall...
Fix Docker Volume Permission Denied for Postgres
When running PostgreSQL in a Docker container with a mounted volume, you may see errors like
Issue queue
SitemapTroubleshooting VS Code Java Language Server Issues
Fix Windows Update Error 0x80070005 (Service Not Starting)
VSCode IntelliSense Not Working for JavaScript: Fixes
Fix VS Code GitHub Authentication Failed Error
Pip Externally Managed Environment: What to Do
Windows Update Error 0x800f081f: How to Manually Install
Docker Compose .env File Troubleshooting Guide
Fix DNS Probe Finished NXDOMAIN with VPN Issues
Docker Compose Port Already Allocated Error Fix
Resolving Node Sass GYP Build Failures
Fix Unverified Breakpoints in Express Node.js
Troubleshooting VSCode Extension Access Errors
Fix Windows Update Error 0x80070005 (Service Not Starting)
VSCode IntelliSense Not Working for JavaScript: Fixes
Fix VS Code GitHub Authentication Failed Error
Pip Externally Managed Environment: What to Do
Windows Update Error 0x800f081f: How to Manually Install
Docker Compose .env File Troubleshooting Guide
Fix DNS Probe Finished NXDOMAIN with VPN Issues
Docker Compose Port Already Allocated Error Fix
Resolving Node Sass GYP Build Failures
Fix Unverified Breakpoints in Express Node.js
Troubleshooting VSCode Extension Access Errors