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

Fix MongoDB Authentication Failed with Role-Based Access Control

You’re trying to connect to MongoDB and getting an authentication error, even though you’re sure ...

How to Fix Windows Update Invalid Configuration Error

When Windows Update stops working with an 'invalid configuration' error, it usually means a syste...

WSL Ubuntu Network Adapter Missing: Fix Guide

If your WSL Ubuntu instance suddenly shows no network adapter (e.g., ip link lists o...

Fix OBS Virtual Camera Not Detected by Zoom

You've set up OBS Studio with the Virtual Camera plugin, but Zoom shows nothing in the camera dro...

Fix WSL Ubuntu Internet Not Working Due to Windows Firewall

If your WSL Ubuntu instance has lost internet connectivity, the Windows Firewall is a common culp...

Docker Compose Port Conflict Troubleshooting Guide