Fix Nginx Upstream Connection Refused Socket Error
When Nginx returns a 502 Bad Gateway or logs upstream connection refused
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 Cloudflare 522 Errors: Connection Timeout Guide
You're trying to load your site and see Error 522: Connection Timed Out. Thi...
Fix Git SSL Certificate Error: Unable to Get Local Issuer
If you see the error fatal: unable to access 'https://...': SSL certificate problem...
Fix DNS Probe Finished NXDOMAIN: Chrome Flags Reset Guide
When you see DNS_PROBE_FINISHED_NXDOMAIN in Chrome, it usually means the browser...
How to Fix Taskbar Icons Not Loading on Startup
You boot your PC, but the taskbar icons—volume, network, battery, or pinned apps—don't show u...
VSCode Python Debugger Breakpoint Not Stopping: Fixes
You set a breakpoint in VSCode, start debugging, and execution passes right through it. The debug...
Issue queue
SitemapGit SSL Certificate Verification Failed Local Issuer
VS Code Terminal Broken After Update? Try These Fixes
How to Fix Incomplete Certificate Chain on Origin
How to Fix Docker Access Denied on Apple Silicon Mac
How to Resolve Detached HEAD in VS Code
Python Virtual Environment Not Activating on Mac: Fixes
522 Error Cloudflare – Step-by-Step Fixes
Subdomain DNS Not Propagating in Cloudflare? Fix
Fixing Nginx Configuration Test Errors
Fix 'node sass build failed' During npm install
How to Debug Nginx Syntax Error: Missing Semicolon
Git Large File Push Fixes and Best Practices
VS Code Terminal Broken After Update? Try These Fixes
How to Fix Incomplete Certificate Chain on Origin
How to Fix Docker Access Denied on Apple Silicon Mac
How to Resolve Detached HEAD in VS Code
Python Virtual Environment Not Activating on Mac: Fixes
522 Error Cloudflare – Step-by-Step Fixes
Subdomain DNS Not Propagating in Cloudflare? Fix
Fixing Nginx Configuration Test Errors
Fix 'node sass build failed' During npm install
How to Debug Nginx Syntax Error: Missing Semicolon
Git Large File Push Fixes and Best Practices