th be a wonderful modem that work well . I have some issue get Comcast to add this modem to my account . after 45 minute of frustration with Comcast , they say I have a bad modem . luckily my account be lock on they end , so they have to call I back a hour later . while I be wait , I call Motorola and they service desk help I log into the Modem 's diagnostic page . we be able to determine that the Modem be fine and my signal noise number be perfect . Motorola customer service be wonderful and I be able to convince Comcast that the modem be good . I love it so far !