just google for ` cisco dpc3008 customer support ' and you 'll see that one of the top hit be the comcast customer forum where hundred of people complain about the dpc3008 drop internet connection . because this modem be list on Comcast 's web site as a approve modem , I buy one 3 month ago . I have have nothing but trouble with it and to my surprise , discover that many other people be experience the same problem . under somewhat heavy load such as streaming a movie , the modem drop the internet connection . the only solution be to use a different modem . I replace the dpc3008 with a Motorola surfboard and have not have any problem . I would stay away from the dpc3008 , it do not work reliably . it 'll be the last Cisco product I ever purchase .