Fix Nginx Upstream Connection Refused in Proxy Pass
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 notesFix Git SSL Certificate 'Unable to Get Local Issuer' After Update
After updating Git or your operating system, you may encounter the error fatal: unable to g...
Fix Docker Build Context Canceled in VS Code
When building Docker images from within VS Code, you might see an error like build context ...
Git Merge Conflict Auto Resolve Not Working: Common Fixes
You run git merge expecting conflicts to be resolved automatically, but instead you ...
Fix Python Permission Denied When Running pip install -r requirements.txt
You run pip install -r requirements.txt and get a PermissionError or
Fix 'Windows Remote Desktop Cannot Connect to This Computer'
When you see "Remote Desktop can't connect to the computer" after entering the target...
Issue queue
SitemapHow to Activate a Python Virtual Environment Step by Step
Troubleshoot Python Dependency Conflicts Step by Step
VS Code Python Permission Denied: Troubleshooting Guide
Fix DNS Probe Finished NXDOMAIN on Router: Step-by-Step
VS Code Not Showing Git Changes: Fix Guide
How to Resolve Git index.lock Permission Denied
How to Fix PermissionError with pip Install
Wildcard Subdomain Caching Issues in Cloudflare
Chrome Extensions Not Loading? Here's the Fix
Blank Taskbar Icons in Windows: Quick Fix Guide
Nginx Too Many Redirects? Here's How to Fix It
Docker System DF Shows No Space Left: Fixes & Checks
Troubleshoot Python Dependency Conflicts Step by Step
VS Code Python Permission Denied: Troubleshooting Guide
Fix DNS Probe Finished NXDOMAIN on Router: Step-by-Step
VS Code Not Showing Git Changes: Fix Guide
How to Resolve Git index.lock Permission Denied
How to Fix PermissionError with pip Install
Wildcard Subdomain Caching Issues in Cloudflare
Chrome Extensions Not Loading? Here's the Fix
Blank Taskbar Icons in Windows: Quick Fix Guide
Nginx Too Many Redirects? Here's How to Fix It
Docker System DF Shows No Space Left: Fixes & Checks