NSLOOKUP results in Server: Unknown error

I’ve input all of the DNS server info for the Cloudflare DNS servers in to my Windows network adapter settings and also into my router’s settings. However, when I run NSLOOKUP from the DOS prompt, instead of showing that I’m using the Cloudflare servers, it shows the following:

Server: UnKnown
Address: 2606:4700:4700::1111

My link from the troubleshooter web page is:

What does 1.1.1.1/help show?