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

Fix Firefox Secure Connection Failed Due to Proxy Settings

If you see "Secure Connection Failed" in Firefox and suspect a proxy is involved, you'...

Fix npm install Permission Denied on Linux

When you run npm install on Linux and hit a permission denied error, it usually mean...

Fix Windows 11 WiFi with Internet but No Network Access

After a network reset, some Windows 11 users find their WiFi connects but shows "No internet&...

Chrome Sync Not Working with VPN: Fixes and Checks

If Chrome sync stops working after you turn on a VPN, you're not alone. The VPN can interfere...

Fix Nginx 502 Bad Gateway on Docker Ubuntu

Fixing Nginx 502 Bad Gateway in Docker: Practical Steps

You set up Nginx as a reverse proxy in Docker, but instead of your app you see a 502 Bad Gateway....