Lately I've been having trouble staying connect to the internet when coming out of sleep mode. It happens other times as well but I notice it more when waking my Imac up. I'll run a network diagnostic and the ethernet,network settings,and ISP are all green but the internet,and server will be red indicating I'm not connected. I replaced the cable modem and have double checked all connections. Could this be my machine or my provider? I'm running Leopard and have the latest updates installed. Can you point me in the right direction? Thanks.