I just bought a 8250 from a friend and am having a hard time setting up my cable internet connection. I attach the cable from the the cable modem into the dedicated network connection on the back of the computer. Then I go to the network wizard and try to set it up. I run through the wizard but it seems like the computer doesnt recognized there is a cable modem plugged in. I thought as soon as I plugged it in the computer would know and set everything up. It does not. Please help