Fix Nginx Upstream Connection Refused Socket Error
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 notesHow to Fix Windows Search Indexing Slow Performance
If Windows Search is taking forever to index files or seems to hang, the problem is often a bloat...
Fix Git Authentication Failed in VS Code on Mac
If you see "Git authentication failed" when pushing or pulling in VS Code on a Mac, the p...
Chrome Extensions Not Loading on Windows 10: Quick Fixes
If your Chrome extensions suddenly stop loading or appear grayed out on Windows 10, it's usua...
Fix Windows Update Error 0x80070002 on Windows 10
When Windows Update fails with error 0x80070002, it usually means the system can't find the u...
Fix Windows 11 Installation Assistant Stuck at 99% with Clean Boot
You're upgrading to Windows 11, and the Installation Assistant gets stuck at 99% for a long t...
Issue queue
SitemapHow to Resolve Git LFS Authentication Failed
Setting Up Cloudflare Origin SSL on Apache
Chrome Sync Broken After Password Change: How to Fix
Windows Security Not Showing in Start Menu Fix
Cloudflare SSL Chain Issue Resolution Guide
Wildcard Subdomain Cloudflare Troubleshooting
Taskbar Icons Disappeared? Quick Recovery Steps
How to Free Up Docker Disk Space
How to Handle Non-Fast-Forward Upstream
Stream Large JSON Files in Python to Avoid MemoryError
Fix Docker Compose Port Already Allocated for PostgreSQL
Remove Large Files from Git History
Setting Up Cloudflare Origin SSL on Apache
Chrome Sync Broken After Password Change: How to Fix
Windows Security Not Showing in Start Menu Fix
Cloudflare SSL Chain Issue Resolution Guide
Wildcard Subdomain Cloudflare Troubleshooting
Taskbar Icons Disappeared? Quick Recovery Steps
How to Free Up Docker Disk Space
How to Handle Non-Fast-Forward Upstream
Stream Large JSON Files in Python to Avoid MemoryError
Fix Docker Compose Port Already Allocated for PostgreSQL
Remove Large Files from Git History