just get this modem over a week ago . functionally it work great with good speed - 25mbp downlink and 4mbp uplink . the only problem I have happen about every other day be that one of the bond uplink channel get a `` t4 time out '' error and from that point forward I can not get more than 1mbp uplink until I reboot the modem . I have talk to Comcast but they be clueless . I have file a question with Motorola but no answer yet . unfortunately , other than basic status information , log and reset - the modem do not have any other debug or configuration capability . it be all do on the Comcast side . if the issue do not get resolve soon , I will be return the modem and go back to my old one -lrb- also Motorola -rrb- .