we just buy this as a upgrade from a older Motorola modem , and we love it . we play online game and the old modem would boot we offline frequently and would reset randomly periodically during the day . after figure out that maybe we modem just could not handle it - I do some research , find this to be Comcast approve , call Comcast for setup , and it work like a charm -lrb- so far -rrb- . speed be noticeably faster and the connection be far more stable . would definitely recommend . setup be easy - but I do recommend call you cable provider so they can send a signal to the modem and get it set up . the only thing I find annoying about this modem be that the datum link constantly flash make I think the modem be offline - but this be normal for this model . I be very happy with it .