Well I was hoping someone else who is using Network Solutions might jump in and say whether or not they were able to get it to work, and I'll probably wait another day or two to see if they respond to my ticket. But the domain is up for renewal this year so likely I'll just move it, would be nice if I can get a Canadian registrar this time. Though at this point I'll take any that isn't too overpriced and is on the Certbot compatible list.