I buy this modem about six week ago , to replace one I be lease from Comcast , after they increase the monthly charge from $ 3 to $ 5 . I be glad I do ; with my old modem I be get download speed of about 3.6 mbp , and now I be get 18 mpb -- even though I be supposedly only sign up for 6 mbp . I do seem to be have more disconnect from the Comcast server since 1\/01\/2010 but I suspect this be not relate to the modem . anyhow , for less than $ 70 , I be happy . I 'll save what I pay in a little over a year and my internet access speed be greatly improve !