Thank you for your replies. Most Helpful. I am trying the batch file Sean has suggested. It is showing that I am indeed losing internet connection at an alarming frequency. Now the problem is to find the cause. ....... The setup here is through a modem attached to a router that then has cables to all the devices (PC, Tivo, Smart Tv, Xbox, alarm system etc). I have attached a laptop running the linktest batch directly to the modem with the idea of seeing if it is a post or pre modem problem. Any other suggestions? Early results show some dropping on that laptop but not always at the same time as the PC....