My modem keeps connection when I turn computer off and on but if I restart (reboot) the conection is lost and have to go through trouble shooting to reestablish the connection. Then I get message from the truubleshooter: "Local area connection doesn't have a valid IP configuration." My old modem broke and I have recently installed the new one. The old modem worked fine in restart. Is it possible thet the Windows 7 is trying to reconect to the old modem? The Internet provider cannot see anything wrong from their side. Could anybody help me to resolve this problem?