[Ramsay2k]

I have an ntl cable modem at 600k with a usb and ethernet ports on the back of it. I use the usb for my pc and use the ethernet port for my ps2 however I cant use both at the same time. If I'm online on my pc and switch on my ps2 to go online it says it cant make a connection to the internet, if I'm using my ps2 online and try to go online on my pc it doesnt work. I have to unplug the port I'm using and plug in the other device and restart my modem.

Does anyone know how I can use my pc and ps2 online at the same time?? (without using a router or hub or other device)
I also have a network setup between this computer and another next door, I dont kno if this will affect anything. Thanks