Fix Nginx Upstream Connection Refused Error
When Nginx returns upstream connection refused in your error logs, it means Nginx tr...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesdocker compose set environment variable from file
When running Docker Compose, you often need to pass environment variables to your services. Hardc...
Fix VSCode Terminal Not Opening with Git Bash
You open Visual Studio Code, press Ctrl+` to bring up the terminal, and expect Git Bash. Instead,...
How to Fix Nginx 'Upstream Connection Refused' Error
When Nginx returns a 502 Bad Gateway with upstream connection refused in the error l...
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...
Cloudflare DNS Propagation Error Fix: Step-by-Step Guide
You updated your DNS records in Cloudflare, but hours later the changes aren't showing. Visit...
Issue queue
SitemapTroubleshooting Cloudflare 521 Error After DNS Change
How to Resolve Nginx Permission Denied for SSL Certs
Chrome ERR_CONNECTION_RESET Error Troubleshooting
PyCharm Virtual Environment Not Activating? Try These Fixes
How to Solve Chrome Access Violation Error
Solving Node.js FATAL ERROR Allocation Failed on Windows
Fix NET::ERR_CERT_AUTHORITY_INVALID on Windows 10
How to Fix pnpm Outdated Lockfile Error
Setting Node.js --max-old-space-size for Memory Errors
How to Fix DNS Probe Finished NXDOMAIN
Docker Container Stops Right After Start Windows
Fix Connection Reset Error on Certain Websites
How to Resolve Nginx Permission Denied for SSL Certs
Chrome ERR_CONNECTION_RESET Error Troubleshooting
PyCharm Virtual Environment Not Activating? Try These Fixes
How to Solve Chrome Access Violation Error
Solving Node.js FATAL ERROR Allocation Failed on Windows
Fix NET::ERR_CERT_AUTHORITY_INVALID on Windows 10
How to Fix pnpm Outdated Lockfile Error
Setting Node.js --max-old-space-size for Memory Errors
How to Fix DNS Probe Finished NXDOMAIN
Docker Container Stops Right After Start Windows
Fix Connection Reset Error on Certain Websites