Fixing Nginx Upstream Connection Refused and Permission Denied
If you see connect() failed (111: Connection refused) or connect() failed (13:...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesWin 11 WiFi Connected But No Internet: IPConfig Release/Renew Fix
You're connected to WiFi, the icon shows full bars, but websites won't load. This usually...
Fix pip Externally Managed Environment on Debian 12
If you're on Debian 12 and get error: externally-managed-environment when using ...
Fixing Nginx 502 Bad Gateway in Docker: Practical Steps
You set up Nginx as a reverse proxy in Docker, but instead of your app you see a 502 Bad Gateway....
Fix 'Permission Denied' for Yarn in VS Code Terminal
When you try to run yarn in the VS Code integrated terminal and see a Permissi...
Fix VSCode Git Authentication Failed SSH Key Error
You try to push or pull in VSCode and get Git: authentication failed even though you...
Issue queue
SitemapTroubleshooting Cloudflare 522: Connection Timeout
Node.js Memory Leak Troubleshooting Guide
Windows Explorer Keeps Restarting: Cache Fix
VS Code Debugger Won't Stop at Breakpoints on Windows
Docker Nginx Volume Permission Denied Fix
Windows Security App Won't Open: Fixes That Work
Resolving Package Conflicts in Pipenv Environments
How to Break the Windows 11 Update Restart Loop
Reduce Chrome Memory Usage: Disable Extensions
How to Fix pip Externally Managed Environment Error
Fix npm install Permission Denied in Home Directory
Fix Chrome Access Violation Error on Windows 7
Node.js Memory Leak Troubleshooting Guide
Windows Explorer Keeps Restarting: Cache Fix
VS Code Debugger Won't Stop at Breakpoints on Windows
Docker Nginx Volume Permission Denied Fix
Windows Security App Won't Open: Fixes That Work
Resolving Package Conflicts in Pipenv Environments
How to Break the Windows 11 Update Restart Loop
Reduce Chrome Memory Usage: Disable Extensions
How to Fix pip Externally Managed Environment Error
Fix npm install Permission Denied in Home Directory
Fix Chrome Access Violation Error on Windows 7