Can you access the GUI if you connect directly (like ethernet from your computer to your server)? I am hardly an expert, but that is what I would do just to make sure that the issue is with unRAID and not your network setup. I know when I set mine up I couldn't connect using http://tower but I could with my server's IP. I figure while you are waiting for people that know what they are talking about, that might be something to do. If nothing else, and assuming it is a network issue, you can do some setup while you wait for them as well.