work seamlessly XD Beautiful and fast product , i be really happy with my purchase . I do not know why other buyer comment that it be not work with they cable provider -lrb- comcast -rrb- . the whole process toke only 10min max . I do not even have to call comcast customer service because everything be automate on my computer setup , all i do be put in my comcast account and telephone number and the rest be click click and wait for activation . everything update and upgrade automatically . also ipv6 compatible which be latest update from comcast . do not know what the problem be out there with other people not be able to make it work . anyway , i just think i should share my experience with everyone out there because i also read the comment before purchase . and my major reason for purchase a new modem be because i finally come to my right sens after i realize the comcast have be charge I $ 7 for 6 year for lease a old crapping modem . with my calculation comcast make $ 506 for lease out internet cable modem from I , Ouch !! .