Just bought the WNR3500L because I got a real good deal on it at Best Buy, and it turns out I got a good product buy what I have read. So I have my router hooked up to my desktop PC and my Xbox 360 wirelessly, everything works fine if I use one or the other, but when the Xbox is in use and some one uses the PC to surf the net or watch a Video at the same time the Xbox looses it connection. Is there any advice as to what I can do to help this issue, Im not against upgrading the router if that will help. 

Thanks in advance.