Hello. I have a Window 7 Home premium desktop and a Lenovo Y500. I experience random internet disconnect in both machines, either LAN or wireless, at random times couple of times every hour. It would be disconnected for 5-10 minutes and it would start working again. However, it would be easily fixed if i re-plug in the Ethernet cable or reconnect the wireless. I came to a conclusion that the problem is not the ethernet cable or the wireless card since it would work instantly after i restart/replug the network. My ISP is Time Warner Cable and I live in a dense area of people using TWC. However, I feel like the problem resides in network settings like DNS. Thank you.