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

Fix Cloudflare DNS Not Working on Router Setup

If you've set Cloudflare DNS (1.1.1.1, 1.0.0.1) on your router but devices still can't resolve do...

Fix Windows Activation Failed Due to Network Issue

When Windows activation fails with a network-related error, the issue is often a temporary connec...

How to Clear Chrome DNS Cache to Fix Loading Errors

If you're seeing ERR_NAME_NOT_RESOLVED, ERR_DNS_FAILED, or page...

Fix Chrome Profile Network Error: Unable to Connect

You open Chrome and get 'Unable to connect to the internet' or a similar network error, but other...

How to Fix Chrome Authentication Failed Due to Proxy Settings

If you see 'authentication failed' in Chrome when trying to access a website, your proxy settings...

Fix VirtualBox Kernel Driver Not Installed on Windows 10