I again am probably wrong, but I think this is why a lot of people connect it by USB to the "server." I don't know why you can't connect to the server.
I hate typing this, because so many people use the Brother. But, there are just so many issues with it. They don't import in PDF. All sorts of networking issues. I know they are pretty good at what they do and they are inexpensive, but I think you are much better off with a more expensive Muratec.