I have internet plus phone from Cox; I'm currently on the 150MB plan. I'd like to upgrade the internet, which requires a new modem. I don't want a combo/router unit; I have my own router setup and no reason to change it. The TM3402 modem would seem to suit the bill, but it seems to be unobtainable. I've tried both online chat and calling the nearest store; both told me that the panoramic gateway combo modem is my only option. Has anyone had any luck getting this modem from Cox?