Fix Nginx Upstream Connection Refused Timeout Error
When Nginx returns 502 Bad Gateway or logs upstream connection refused timeout...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesVS 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...
How to Recover from a Detached HEAD in Git After a Rebase
You're in the middle of a rebase, you see a message like 'detached HEAD', and you'...
Fix Git Clone Timeout by Adjusting Config Settings
When git clone fails with a timeout error, it's often because the connection is ...
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...
DNS Probe Finished NXDOMAIN: Troubleshooting Checklist
Seeing "DNS_PROBE_FINISHED_NXDOMAIN" in Chrome means the browser couldn't find the IP...
Issue queue
SitemapWhy Docker Containers Exit Immediately on Linux
Mac Docker Compose 'Port Already Allocated' Fix
Chrome PDF Error: Access Violation Troubleshooting
Docker Build Context Canceled: Use .dockerignore
Windows Search Not Working After Update Fix
Windows 11 Installation Assistant Stuck at 99% Disk Space
Troubleshooting Windows Update 0x80070002
Nginx Upstream Directive Test Failure Fix
VSCode Breakpoint Not Working? Here's How to Fix It
Git LFS and Permission Denied: Troubleshooting Guide
Docker Container Exits Immediately: Network Troubleshooting
How to Add Anaconda Python to Windows PATH
Mac Docker Compose 'Port Already Allocated' Fix
Chrome PDF Error: Access Violation Troubleshooting
Docker Build Context Canceled: Use .dockerignore
Windows Search Not Working After Update Fix
Windows 11 Installation Assistant Stuck at 99% Disk Space
Troubleshooting Windows Update 0x80070002
Nginx Upstream Directive Test Failure Fix
VSCode Breakpoint Not Working? Here's How to Fix It
Git LFS and Permission Denied: Troubleshooting Guide
Docker Container Exits Immediately: Network Troubleshooting
How to Add Anaconda Python to Windows PATH