I buy this modem since Comcast give it three star out of three for compatibility with DOCSIS 3.0 . it work great for two month . for the past week the modem lose connection to the internet after fifteen minute . in order to not lose connection I have to keep a persistent ping run to the internet . even with this measure I can not stream video without it have pause when the timeout occur . I have Comcast out my house to look at my wiring . they replace several connector , but the problem still persist . there be no reason for this to happen after tqo month . there be no support page on Motorola 's website . I can only check the internal IP of the modem and restart it from there . the only other option be a factory reset of the device . since two month have pass I can not return it .