Well, I finally got on live chat (and by finally, I mean after about half an hour of waiting) the other day, and he helped me a little. I plugged into the main modem (I'm using wireless on my laptop) and played for a while like that, and now for whatever reason I can take the laptop anywhere again and not get booted. I'm still having major issues getting into the game, but once I'm in it seems to be fine. I have to try about 5-6 times to log in.
Anyways, the major part of the problem is fixed. I can handle having to type my password a bunch of times, as long as I can stay in the game once I'm in. Happy (early!) Halloween to everyone, and thanks for trying to help!