Fix Nginx Upstream Connection Refused in Proxy Pass
When Nginx returns a 502 Bad Gateway or logs upstream connection refused
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix Git Clone Timeout in VS Code: Practical Steps
You're trying to clone a repository in VS Code, but the operation times out. This often happe...
Fix Ethernet Connected but No Internet on Windows 11
You plug in an Ethernet cable, Windows 11 shows you're connected, but websites won't load...
How to Fix Windows Explorer Keeps Restarting
If Windows Explorer (the desktop, taskbar, and file manager) keeps restarting, you'll see the...
Fix 'node sass build failed' During npm install
When running npm install, you might see an error like "node sass build f...
Fix Nginx Permission Denied Errors on Ubuntu
If you're seeing permission denied errors in your Nginx error log on Ubuntu, the...
Topic paths
Quick titles
Troubleshooting Windows Update Error 1053How to Solve DNS Probe Finished NXDOMAIN from AntivirusNginx Permission Denied Error on CentOS: How to FixResolve 502 Bad Gateway in Docker Nginx MySQL SetupHow to Fix Nginx 502 Bad Gateway with Docker Compose VariablesHow to Resolve Command Not Found in VS Code TerminalResolve Chrome Invalid Authority SSL Error After ReinstallHow to Fix the Git index.lock File Exists Error