OK, We have comcast internet. Technician has been out twice and each time they say it is the computer. We take the computer to Best buy it works fine. Took the computer to my sons house (AT&T DSL) works fine. Get home doesn't work. We call Comcast when they have us run IP Config we get a Media Disconnect Error. This is a Desktop computer not wireless running Vista. Comcast doesn't have a clue - ANY HELP APPRECIATED.