I can't access my router due to ISP policy. Some tools do allow connecting to the name.local format (Vinagre did for example, but that one has other bugs so I gave up on it) so I'm starting to think that's actually just a problem with Remmina, not a general Linux issue.
Not sure what you mean by the domain question, I do have a domain specified if i check the windows machine pc properties so I'm guessing I am actually in one?
I'll give it a try, thanks. Maybe I was just messing around with domains too much, could be that part is more strictly defined here compared to win