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 notesDocker Compose Env Variable Not Available in Container: Fix
You define an environment variable in your docker-compose.yml file, but when you run...
How to Reset Windows Security App Settings
If the Windows Security app isn't opening, showing errors, or behaving oddly, resetting its s...
Fix Docker Pull Access Denied in CI/CD Pipeline
When a CI/CD pipeline fails with denied: requested access to the resource is denied ...
Bluetooth Hardware Not Found on Windows 11: Fixes
You open Bluetooth settings in Windows 11 and see 'Bluetooth hardware not found' – no swi...
Fixing Nginx Upstream Connection Refused on Port 443
You see "upstream connection refused" in your Nginx error log when proxying requests to p...
Issue queue
SitemapFix Remote Desktop Connection Blocked by Firewall
Why Your Nginx Config Test Fails
Fix npm install Permission Denied on Linux
Fix Docker Engine Stopped by Antivirus Software
Fix Internet Problems by Flushing DNS on Windows 11
How to Resolve Docker Network Not Found
Android Chrome ERR_CONNECTION_RESET Troubleshooting Guide
Docker Network Missing After Container Restart
Troubleshooting Cloudflare SSL Modes: Full, Strict, and Flexible
Fix Missing System Tray Icons on Windows
Fix npm Permission Denied by Changing Global Directory
How to Solve Nginx Permission Denied on Upstream
Why Your Nginx Config Test Fails
Fix npm install Permission Denied on Linux
Fix Docker Engine Stopped by Antivirus Software
Fix Internet Problems by Flushing DNS on Windows 11
How to Resolve Docker Network Not Found
Android Chrome ERR_CONNECTION_RESET Troubleshooting Guide
Docker Network Missing After Container Restart
Troubleshooting Cloudflare SSL Modes: Full, Strict, and Flexible
Fix Missing System Tray Icons on Windows
Fix npm Permission Denied by Changing Global Directory
How to Solve Nginx Permission Denied on Upstream