Control D's DNS on an unregistred device block internet navigation.

Hi. On the documentation it says that if the ip is not registred "Anything you had blocked or redirected will resolve normally, as if you're using a standard DNS resolver." (https://docs.controld.com/docs/ip-not-authorized).

However, on my android based Nvida device, Control's D DNS are blocking the connection. Unless I register the IP, I have no internet ?

Thank you.