Fixing Nginx Upstream Connection Refused on Port 443
You see "upstream connection refused" in your Nginx error log when proxying requests to p...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesFix Chrome Startup Error 0xc0000022 on Windows
When you try to open Google Chrome and see error code 0xc0000022, the browser fails to start. Thi...
Fix Windows Search Indexing Error 0x80040c41
If you see error 0x80040c41 when searching in Windows, the indexing service is likely stuck due t...
Fix Windows 11 Blue Screen After Update Using DISM
After a Windows 11 update, some users encounter a blue screen of death (BSOD) on boot. This often...
Windows Security App Not Opening? Try These Steps
If the Windows Security app won't open, shows a blank screen, or crashes immediately, you'...
Fix VS Code Permission Denied Error on Windows 11
If you see "permission denied" when saving files, running terminals, or using extensions ...
Issue queue
SitemapGit Clone Connection Timed Out? Firewall Fixes
How to Fix Nginx Upstream Connection Refused Error
Nginx Redirect Loop After SSL: Fix Guide
Troubleshoot Docker Compose .env File Issues
Fix Cloudflare 521 Error on Nginx: Step-by-Step Guide
VS Code IntelliSense Not Working for Python: Common Fixes
How to Disable Chrome Extensions to Free Up Memory
Windows 11 Loses Internet After Sleep – How to Fix
How to Fix BITS Service Causing Update Hang on Windows 11
Fix Windows 11 Upgrade Stalling at 99%
Reset Chrome When Extensions Won't Load
Fix VS Code Terminal Not Opening with Node
How to Fix Nginx Upstream Connection Refused Error
Nginx Redirect Loop After SSL: Fix Guide
Troubleshoot Docker Compose .env File Issues
Fix Cloudflare 521 Error on Nginx: Step-by-Step Guide
VS Code IntelliSense Not Working for Python: Common Fixes
How to Disable Chrome Extensions to Free Up Memory
Windows 11 Loses Internet After Sleep – How to Fix
How to Fix BITS Service Causing Update Hang on Windows 11
Fix Windows 11 Upgrade Stalling at 99%
Reset Chrome When Extensions Won't Load
Fix VS Code Terminal Not Opening with Node