I am looking for a simple network monitor for a small site. It just has a comcast cable modem that keeps going down. I Had Comcast out several times and replaced the modem. All I want to do is log the Up\Down status of the modem. I do not need real time alerts. I would like to be able to set it up on a old laptop for a few weeks just to collect information. There are only 3 PCs connected directly to this modem, so I don't need anything complex.