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 Disable Shell Extensions to Stop Explorer Restarting
If File Explorer keeps restarting, crashing, or freezing on its own, a misbehaving shell extensio...
Fix Windows Search Indexing Not Working for Outlook
If you open Outlook and search for an old email, contact, or appointment and nothing appears, or ...
Fix NET::ERR_CERT_AUTHORITY_INVALID on Windows 10
You're browsing in Chrome or Edge and see NET::ERR_CERT_AUTHORITY_INVALID. T...
Fix Git Stash Error: index.lock File Exists
You run git stash and see: fatal: Unable to create 'path/.git/index.lock&#...
Git Merge Conflict: Keep Both Files Instead of One
When you run git merge and get a conflict, Git stops and marks the conflicting files...
Issue queue
SitemapPython MemoryError Fix: Alternative Libraries for Big Data
Windows 11 Update Stuck at 0%? Here's How to Fix It
How to Fix Docker Desktop Not Starting on Boot
npm install EACCES: Fix Incorrect Node Ownership
Troubleshooting Nginx Duplicate Listen Directive
Fix Git SSL Verification Failure: Local Issuer Not Found
Bypass pip Externally Managed Error with venv
Pre-Merge Checklist to Avoid Git Conflicts
Fix Node.js Heap Out of Memory When Processing Large JSON Files
Fix Angular Breakpoints Not Hit in VS Code
Resolve 'Missing Semicolon' in Nginx Config Test
Fix Docker Compose Env File Not Loaded
Windows 11 Update Stuck at 0%? Here's How to Fix It
How to Fix Docker Desktop Not Starting on Boot
npm install EACCES: Fix Incorrect Node Ownership
Troubleshooting Nginx Duplicate Listen Directive
Fix Git SSL Verification Failure: Local Issuer Not Found
Bypass pip Externally Managed Error with venv
Pre-Merge Checklist to Avoid Git Conflicts
Fix Node.js Heap Out of Memory When Processing Large JSON Files
Fix Angular Breakpoints Not Hit in VS Code
Resolve 'Missing Semicolon' in Nginx Config Test
Fix Docker Compose Env File Not Loaded