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 Nginx Upstream Connection Refused in Proxy Pass
When Nginx returns a 502 Bad Gateway or logs upstream connection refused
How to Fix Git Push Rejected Non-Fast-Forward Upstream
When you run git push and see rejected! non-fast-forward, it means your...
Fix 'docker network not found' Error on Windows
If you see Error response from daemon: network <name> not found when running D...
Docker Compose Port Mapping: Fix Common Issues
You've defined a ports section in your docker-compose.yml, but the ...
Fix DNS Probe Finished NXDOMAIN Error on Mac
You're browsing on your Mac and suddenly a site won't load, showing the error DNS...
Issue queue
SitemapRemote Desktop Connection Failed 0x80004005 Guide
Resolve Cloudflare 521 Error on Wildcard Domains
Chrome STATUS_ACCESS_VIOLATION Fix: Disable Hardware Acceleration
Fix Windows Search Index Exclude Folder Not Working
How to Resolve Git Stash index.lock Error
Chrome Extensions Not Working? Here's How to Fix
How to Get Chrome Extensions Working Again
Resolve Git SSL Certificate Error: Unable to Get Local Issuer
Fix npm ERR! enoent ENOENT: package.json Not Found in node_modules
Fixing Git Merge Refusing Unrelated Histories
Python Dependency Conflict Troubleshooting Guide
Fix Port Already Allocated Error in Docker Compose
Resolve Cloudflare 521 Error on Wildcard Domains
Chrome STATUS_ACCESS_VIOLATION Fix: Disable Hardware Acceleration
Fix Windows Search Index Exclude Folder Not Working
How to Resolve Git Stash index.lock Error
Chrome Extensions Not Working? Here's How to Fix
How to Get Chrome Extensions Working Again
Resolve Git SSL Certificate Error: Unable to Get Local Issuer
Fix npm ERR! enoent ENOENT: package.json Not Found in node_modules
Fixing Git Merge Refusing Unrelated Histories
Python Dependency Conflict Troubleshooting Guide
Fix Port Already Allocated Error in Docker Compose