I have frequent intermitten connection disruptions from my internet cable connection. I had the cable company do a through investigation and determined it on my end. My problem is periodically I will get a small message box stating that YOUR LAN CABLE HAS BEEN UNPLUGED. My modem will loose all its lights then go through a boot up process. I would like to know if you think it could be my modem, cable, or network card. I would like to know the best place to start.