this modem drop connection and\/or get hang up constantly . it get hang up and reboot itself several time a day . sometimes I have to manually reset\/power cycle the modem to get it back up and run again . you should not have to manually reset or power cycle you modem 2-10 time a day , especially a brand new modem . try troubleshoot with Comcast and be refer to Linksys Tech support , who then try to refer I back to Comcast . after tell they that Comcast refer I to Linksys in the first place , they tell I it be beyond they scope of expertise and refer I to Cisco Tech support . Cisco Tech flat out say that they could not do anything for I or my problem since there be nothing configurable on the modem . I ask if the modem be faulty then would not cisco have to replace it under they 1 year warranty ? the Cisco Tech say there be nothing they can do to help . this problem with constant disconnect affect a lot of Comcast customer and the only fix seem to be have the firmware flash back to the Aug 2011 because the Jan 2012 firmware be faulty . unfortunately , none of the tech support people that I get in touch would be knowledgeable enough to help . of the two Linksys and Cisco Tech I speak to , neither be able to even give I the default password for the Modem status page . the dpc3008 maybe certified by Comcast but neither Comcast nor any part of Cisco or Linksys will provide support for it . this modem do not have a log page to see what go wrong and there be no interface or even download site for the user to change the firmware . also , when the modem be hang up or if the internet status be disconnect , there be no way to reach the modem status page through a browser via the IP address 192.168.100.1 . all the other cable modem I have use before -lrb- Scientific Atlanta , Motorola Surfboard , and Linksys cm100 -rrb- all be reachable even when the internet connection be down . with this one , you can not even check the status and there be no log to troubleshoot with . if you be with Comcast , stay away from this modem because the certified for Comcast label on this modem be meaningless and you 'll get no help from the manufacturer .