Knowledge base for software setup, errors, and daily tool work.

How to Enable Chrome Extensions That Aren't Loading

You open Chrome and see a grayed-out extension icon. Clicking 'Enable' does nothing, or t...

Docker Container Exits Immediately: Fix with Restart Policy

You start a Docker container, it runs for a second, then stops. No error messages, just a quick e...

Fix Wi-Fi No Internet on Windows 11 Without Restarting Router

You connect to Wi-Fi, the icon shows internet access, but browsers say no internet. Restarting th...

Fix Git Push Rejected Non Fast Forward Error

How to Fix Nginx Upstream Connection Refused on Port 80

When nginx logs show "upstream connection refused" while connecting to port 80, it means ...