Fixing Nginx Upstream Connection Refused in Load Balancing
When Nginx load balancing returns upstream connection refused, it means one or more ...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesFix Nginx Redirect Loop After SSL Certificate Install
You installed an SSL certificate, and now your site redirects in a loop. The browser shows 'E...
Fix Nginx 'upstream connection refused' When Talking to PHP-FPM
You're seeing upstream connection refused in your Nginx error log, and your site...
Docker Compose Environment Variable Not Working: Fixes
You define a variable in a .env file or directly in docker-compose.yml, but your container sees n...
Git Merge Unrelated Histories: When and How to Use --allow-unrelated-histories
You try to merge two branches and get fatal: refusing to merge unrelated histories. ...
Fixing Docker Build Context Canceled Permission Denied
You're running a Docker build, and suddenly it fails with an error like context cancele...
Issue queue
SitemapHow to Fix Windows 11 Blue Screen After Update Using Clean Boot
Fix Greyed Out Breakpoints in VS Code Debugger
Resolving Git Clone Timeout with Exit Code 128
Resolve npm Permission Denied in node_modules
Resolve Chrome Error Code 0xc0000022 on Windows
Fix Docker Compose 'port 8080 already allocated' Error
Chrome Extensions Not Loading from Web Store? Here's How to Fix
Fix Docker Disk Full Error Inside Container
Nginx 502 Bad Gateway: Connection Refused to localhost
How to Clear Edge Sync Cache and Resolve Sync Issues
How to Fix Cloudflare SSL Full Strict Errors
Resolve Self-Signed Certificate Error in Cloudflare Full Strict
Fix Greyed Out Breakpoints in VS Code Debugger
Resolving Git Clone Timeout with Exit Code 128
Resolve npm Permission Denied in node_modules
Resolve Chrome Error Code 0xc0000022 on Windows
Fix Docker Compose 'port 8080 already allocated' Error
Chrome Extensions Not Loading from Web Store? Here's How to Fix
Fix Docker Disk Full Error Inside Container
Nginx 502 Bad Gateway: Connection Refused to localhost
How to Clear Edge Sync Cache and Resolve Sync Issues
How to Fix Cloudflare SSL Full Strict Errors
Resolve Self-Signed Certificate Error in Cloudflare Full Strict