How to Fix Nginx 'Upstream Connection Refused' Error
When Nginx returns a 502 Bad Gateway with upstream connection refused in the error l...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesHow to Fix Git Clone Timeout on Slow Internet
If you're seeing fatal: unable to access 'https://...' : Failed to connect ...:...
pnpm Setup Checklist for Windows: Step-by-Step Guide
If you're setting up pnpm on Windows and running into issues like command not found, permissi...
Fix Docker Build Context Canceled by Symlink Errors
If you see context canceled during a docker build and you have symlinks...
Recover Lost Changes After Git Detached HEAD
You've made several edits, then checked out an old commit or tag, and now Git says you're...
VS Code Git Changes Not Detected After Save: Fixes
You save a file in VS Code, but the Source Control panel shows no changes. The file doesn't a...
Issue queue
SitemapFix node-sass Build Failed: node-gyp Rebuild Error
Git LFS on GitHub: Setup Guide and Common Fixes
Git index.lock File Exists: Causes and Solutions
How to Clear pnpm Cache: Step-by-Step Guide
Fix npm EACCES Permission Denied for Global Install
Git Clone Connection Timed Out: GitHub Enterprise Fixes
Fix Nginx Upstream Connection Refused & Upstream Not Found
Diagnosing and Repairing Chrome Memory Leaks
Fix 'Windows Cannot Access Shared Folder' Permission Denied
Nginx Cloudflare Origin Certificate Installation Guide
How to Debug Node.js Out of Memory Crashes
How to Fix Chrome High Memory Usage from Hardware Acceleration
Git LFS on GitHub: Setup Guide and Common Fixes
Git index.lock File Exists: Causes and Solutions
How to Clear pnpm Cache: Step-by-Step Guide
Fix npm EACCES Permission Denied for Global Install
Git Clone Connection Timed Out: GitHub Enterprise Fixes
Fix Nginx Upstream Connection Refused & Upstream Not Found
Diagnosing and Repairing Chrome Memory Leaks
Fix 'Windows Cannot Access Shared Folder' Permission Denied
Nginx Cloudflare Origin Certificate Installation Guide
How to Debug Node.js Out of Memory Crashes
How to Fix Chrome High Memory Usage from Hardware Acceleration