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 notesCloudflare 521 Error: How to Check Server Logs
If you're seeing a Cloudflare 521 error, it means Cloudflare tried to connect to your origin ...
How to Fix Cloudflare 522 Error: Step-by-Step Support Guide
When you see a Cloudflare 522 error, it means the connection between Cloudflare and your origin s...
Fix err_name_not_resolved Caused by Chrome Extensions
If you see err_name_not_resolved in Chrome, a misbehaving or conflicting extension c...
Fix Python Permission Denied When Installing Packages on Mac
If you see a 'permission denied' error when running pip install somepackage ...
Fix VS Code Breakpoint Condition Not Working
You set a conditional breakpoint in VS Code, but execution either stops every time or never stops...
Issue queue
SitemapEdge Sync Not Completing? Try These Fixes
Docker Container Exits Right After Start in Detached Mode
Fix Chrome Status Access Violation by Resetting Settings
Python Large File Processing: Memory Error Solutions
Chrome Hardware Acceleration Crash Troubleshooting
How to Fix Python Memory Error When Reading Large Files
Stop Windows Security App from Crashing
Remote Desktop Firewall Blocking: Troubleshooting Guide
Resolve 0x800f081f by Downloading Updates from Microsoft Catalog
Fix Node Sass Build Failed GYP Error: Step-by-Step Guide
Chrome Incognito Certificate Authority Error – Quick Fixes
How to Resolve Git Merge Conflicts with Stashed Changes
Docker Container Exits Right After Start in Detached Mode
Fix Chrome Status Access Violation by Resetting Settings
Python Large File Processing: Memory Error Solutions
Chrome Hardware Acceleration Crash Troubleshooting
How to Fix Python Memory Error When Reading Large Files
Stop Windows Security App from Crashing
Remote Desktop Firewall Blocking: Troubleshooting Guide
Resolve 0x800f081f by Downloading Updates from Microsoft Catalog
Fix Node Sass Build Failed GYP Error: Step-by-Step Guide
Chrome Incognito Certificate Authority Error – Quick Fixes
How to Resolve Git Merge Conflicts with Stashed Changes