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

Fix Nginx Upstream Connection Refused & Upstream Not Found

When you see upstream connection refused or upstream not found in your ...

Fix Nginx HTTP to HTTPS Redirect Loop Error

You set up an HTTP-to-HTTPS redirect in nginx, but now your browser shows a redirect loop error. ...

Fix Nginx 502 Bad Gateway on Docker Ubuntu

Fix Nginx Redirect Loop After SSL Certificate Install

You installed an SSL certificate, and now your site redirects in a loop. The browser shows 'E...

Win 11 WiFi Connected But No Internet: IPConfig Release/Renew Fix

You're connected to WiFi, the icon shows full bars, but websites won't load. This usually...

How to Fix Chrome Startup Crash by Disabling Extensions

If Chrome crashes as soon as you open it, a misbehaving extension is often the culprit. Extension...