I have have a DOCSIS 2.0 Scientific Atlanta dpc2100r2 for many year now . it have work like a charm . recently in my infinite wisdom , I decide to upgrade to a 3.0 modem and choose the Linksys dpc3008 . I choose it mostly for its small footprint and the lack of the need of a fan so that it would go into my structured wiring closet . installation be pretty smooth and the new speed look impressive . I be real happy till I find that it drop the link every 15 minute , this be drive my teenager crazy . Google search reveal that a number of people be have similar problem . Cisco say it be Comcast 's fault , Comcast say it be the modem 's fault . the modem be rate 3.0 \/ 3.0 by Comcast and be certify by they . will have to return the modem and go back to my slower but reliable Scientific Atlanta dpc2100r2 .