http://arrisi.com/consumer/_docs/ARRIS_Modems_Comcast_Xfinity_Best_Buy.pdf http://arrisi.com/consumer/_docs/ARRIS_Modems_Comcast_Xfinit... It seems if you push

http://arrisi.com/consumer/_docs/ARRIS_Modems_Comcast_Xfinity_Best_Buy.pdf http://arrisi.com/consumer/_docs/ARRIS_Modems_Comcast_Xfinit... It seems if you push enough, they'll give up the model/brand that they support and provision.