oh sorry havent checked this for a few days yes Arris modem.
I'm on my second arris modem and its starting to go out as well. We just went and got rid of our phone through comcast and went with vontage instead. I'd suggest calling a technician and have him come and give you a new modem after testing the one you have. And if you get rid of your phone through comcast just ask for a good old motorola surfboard, These Arris modems suck balls