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 Git 'index.lock file exists' Error
If you see fatal: Unable to create 'path/.git/index.lock': File exists. when...
Fix WiFi Connected But No Internet on Windows 11 Using Netsh
You connect to WiFi, see full bars, but websites won't load. This is common on Windows 11. Th...
Fix Git Permission Denied in VS Code Terminal
You're working in VS Code, try to run a Git command in the integrated terminal, and get a ...
Windows 11 Update Stuck at 0%: Registry Fix Guide
You click 'Check for updates' and see the progress bar stuck at 0% for minutes or hours. ...
Fix Nginx Configuration Test Failure After Adding Proxy Pass
You add a proxy_pass directive to an Nginx server block, run nginx -t, ...
Issue queue
SitemapHow to Fix npm run build Exit Code 1
Docker Network Not Found: How to Fix
Edge Sync Error 0x80072efd Fix Guide
Git Allow Unrelated Histories Explained
PowerShell Venv Activation Not Working
How to Resolve Permission Denied in VS Code on Network Drives
Fix Git Remote Origin Already Exists Error macOS
Troubleshooting Docker Unauthorized Access Denied
Shared Hosting npm install Permission Denied Workaround
Fix Docker 'No Space Left on Device' in Container
Resolving Python's Externally Managed Environment Warning
Understanding Cloudflare DNS Propagation Times
Docker Network Not Found: How to Fix
Edge Sync Error 0x80072efd Fix Guide
Git Allow Unrelated Histories Explained
PowerShell Venv Activation Not Working
How to Resolve Permission Denied in VS Code on Network Drives
Fix Git Remote Origin Already Exists Error macOS
Troubleshooting Docker Unauthorized Access Denied
Shared Hosting npm install Permission Denied Workaround
Fix Docker 'No Space Left on Device' in Container
Resolving Python's Externally Managed Environment Warning
Understanding Cloudflare DNS Propagation Times