Fixing Nginx 502 Bad Gateway with Docker and Load Balancers
If you're running Nginx as a reverse proxy or load balancer in a Docker setup, a 502 Bad Gate...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesFix Windows Explorer Keeps Restarting in Safe Mode
If you boot into Safe Mode only to see Windows Explorer crash and restart over and over, the prob...
Cloudflare DNS Setup Propagation Not Completing: Fixes
You've updated your DNS records at Cloudflare, but hours later the changes still aren't s...
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...
How to Fix 'Permission Denied' When Saving Files in VS Code
You're editing a file in VS Code, hit save, and get a 'permission denied' error. This...
Fix ERR_CERT_AUTHORITY_INVALID on Localhost
When testing a local web app, you may see ERR_CERT_AUTHORITY_INVALID in Chrome or si...
Issue queue
SitemapUbuntu VSCode Terminal Not Opening: Troubleshooting Guide
Troubleshooting Chrome Black Screen from Hardware Acceleration
How to Reset Chrome to Fix ERR_NAME_NOT_RESOLVED
Troubleshooting Nginx Permission Denied for Configuration
Troubleshooting Docker Network Not Found in Linux
How to Set Environment Variables from a File in Docker Compose
Windows 11 Installation Assistant Stuck: Troubleshooting Guide
Fix Nginx Upstream Connection Refused & Upstream Not Found
Windows 11 Update Stuck at 0%: Quick Fixes
Fix Cloudflare 522 Error from Plugin Conflicts
Group Policy Method to Enable Windows Defender Real-Time Protection
Conda Not Working in VS Code Terminal
Troubleshooting Chrome Black Screen from Hardware Acceleration
How to Reset Chrome to Fix ERR_NAME_NOT_RESOLVED
Troubleshooting Nginx Permission Denied for Configuration
Troubleshooting Docker Network Not Found in Linux
How to Set Environment Variables from a File in Docker Compose
Windows 11 Installation Assistant Stuck: Troubleshooting Guide
Fix Nginx Upstream Connection Refused & Upstream Not Found
Windows 11 Update Stuck at 0%: Quick Fixes
Fix Cloudflare 522 Error from Plugin Conflicts
Group Policy Method to Enable Windows Defender Real-Time Protection
Conda Not Working in VS Code Terminal