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

How to Fix Nginx 'Upstream Connection Refused' Error

When Nginx returns a 502 Bad Gateway with upstream connection refused in the error l...

How to Fix Windows Remote Desktop Not Working After an Update

After a Windows update, you might find that Remote Desktop (RDP) no longer connects. This is a co...

Fix Windows 11 WiFi Connected but No Internet: IPv4 Settings

You see the WiFi icon connected, but websites won't load. The network shows “No internet” or ...

Fix 'git remote origin already exists' Error in GitLab

Resolving Python Dependency Conflicts in setup.py

When you run pip install . or python setup.py develop, a dependency con...

Fix Chrome Black Screen in Remote Desktop with Hardware Acceleration Off

You're remoted into another machine, open Chrome, and the screen goes black—or the browser wi...