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Here is the issue with this product. The firmware of the device can not be upgraded manually. Netgear says ISPs will push the upgrade. Talking to the ISP in this case Optimum online says "They won't update customer's own devices". I called the Netgear support and the lady I spoke with said exactly what I read in the netgear site. "There is no manual upgrade available". She didn't believe me when I said ISP is not pushing the upgrades if they are not renting the modem. She actually made a call to optimum online support teleconferencing me in, after a lot of waiting she got the same answer. Finally she told me that there is no other way. I don't want to be stuck with old firmware forever. (Currently I had V2.01.15 and Comcast is already using V3.01.04. There is already a gap) Returning the modem now.