I'm at my wits end... About two weeks ago I bought an Xbox 360 and wanted to set it up on the network here at home. I'm using a Linksys WRT54G router and all the LAN ports were occupied. So I decided to add a D-Link DGS-2205 switch to the network to give me a few more LAN ports. At first I had it connected to the router via a straight-through cable. But then my room-mates started to complain that they were getting slow/spotty access to the Internet. I then came to find out that, because the switch I bought does not have an uplink port, I was suppose to use a cross-over cable. So went up to Fry's and picked up the cable I needed and put it in between the router and the switch. Unfortunately this has not fixed the problem. My room-mates are still complaining about slow/spotty internet access, while everything works fine for me. Oh and I should mention, too, that if/when they unplug me from the router then their service goes back to normal..... I'm new to this and have done everything I can think of... I really need help with this, please.