I buy this modem when I move into my new apartment . I be read review that some people could not get this modem to work with Comcast as they isp but I have not have any issue so far . during my research I buy this modem for three reason : - DOCSIS 3.0 - simplicity - affordable like the other reviewer I use a Medialink Wireless N Router - 802.11 n and they make a lovely pair .