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 notesHow to Fix Chrome Sync Not Working with Multiple Profiles
If you use multiple Chrome profiles—say, one for work and one for personal—sync can sometimes sto...
How to Resolve Python pip Dependency Conflicts
You run pip install and see a wall of text about DependencyConflict or ...
Fix Windows Update Error 0x80070005: Cannot Install Updates
You try to install Windows updates but get error 0x80070005 with the message "Cannot install ...
How to Turn On Bluetooth in Windows 11: Quick Fixes
You open Quick Settings, click the Bluetooth icon, and nothing happens—or the toggle is grayed ou...
Fix ERR_NAME_NOT_RESOLVED DNS Configuration Error
When you see ERR_NAME_NOT_RESOLVED in your browser, it means the DNS lookup for ...
Issue queue
SitemapFix Node Sass Build Failure: Environment Variable Errors
Fix Nginx Redirect Loop After SSL Setup
Mac Docker Missing Network Troubleshooting Guide
Update Git SSL Certificates to Fix 'unable to get local issuer'
Fixing Docker Bind Mount Permission Denied Errors
Cloudflare 521 Error: Fixing WordPress Connection Issues
How to Fix Node.js and npm Version Mismatch
How to Rebuild Search Index in Windows
VSCode Terminal Not Opening After Extension Install: Fix
Docker Compose Default Env Variable Not Working
Resolve Peer Dependency Issues in pnpm
Fixing Nginx 502 Bad Gateway in Docker: Practical Steps
Fix Nginx Redirect Loop After SSL Setup
Mac Docker Missing Network Troubleshooting Guide
Update Git SSL Certificates to Fix 'unable to get local issuer'
Fixing Docker Bind Mount Permission Denied Errors
Cloudflare 521 Error: Fixing WordPress Connection Issues
How to Fix Node.js and npm Version Mismatch
How to Rebuild Search Index in Windows
VSCode Terminal Not Opening After Extension Install: Fix
Docker Compose Default Env Variable Not Working
Resolve Peer Dependency Issues in pnpm
Fixing Nginx 502 Bad Gateway in Docker: Practical Steps