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

How to Fix Cloudflare 521 Error (Port 443 Blocked)

When you see a Cloudflare 521 error, it means Cloudflare’s servers cannot connect to your origin ...

Fix Windows Cannot Access Shared Folder Due to Firewall

You try to open a shared folder on another PC and get an error like "Windows cannot access \\...

Fix VS Code Breakpoints Not Hitting in React Apps

You set a breakpoint in your React component, but when you run the app, the debugger never stops ...

Fix 'package.json Not Found' After Cloning a Repository

Symptom

You clone a repository from GitHub (or another remote), change into the directory...

How to Fix an Nginx Redirect Loop: Step-by-Step

You load a site and the browser keeps spinning—eventually showing 'redirect loop' or '...

Fix PowerShell Execution Policy Restricted in VS Code

When you try to run a PowerShell script in the Visual Studio Code integrated terminal and see an ...