Log in problem while using Hughesnet satellite internet

[Kareo]

Hello,
I have been playing on EZ server just fine on this laptop, but where I am now, the only internet service available is Hughesnet. When I try to log in, it takes me to the server select screen with no problem at all. But as soon as I select my server and hit play, it goes to a black screen and either sits there unresponsive or just flat out crashes.

I know Hughesnet has high ping (sitting around 1000ms for me), but everything I have read says that people play everquest just fine with it. So I don't think it is the latency that is causing my problem.

There is a router between the modem and my computer, which I thought might be causing the problem, so I tried hooking my computer directly up to the modem, and had the same result.

I tried making a wifi hotspot with my iPhone, and it did let me log in all the way to the character select screen, but my reception is so bad up here that it dropped me afterwards, but it did prove that it has something to do with the Hughesnet connection.

Any ideas for me? Maybe some port that is blocked or something? Why would it let me into the server select screen but not beyond?