Tried using: set my Meraki to serve up the IP address given by the dashboard. The my.nextdns.io dashboard says something like "this device is using a different configuration with nextdns".

I think it happens after you configure an anonymous DNS, then you create an account. It feels like my configuration got disconnected or something. Hard to describe.

Regardless, the blacklist/whitelist didn't work. Maybe a caching problem? Will try back later.