Joe has switched his parents over to Comcast for internet access and TV, and he's having a hard time opening ports through the router for their alarm system. What can he do? Rich says to try what Xfinity recommends here - https://www.xfinity.com/support/articles/port-forwarding-xfinity-wireless-gateway. If that doesn't work, then it may be that the port forwarding capability of Xfinity is limited. Rich also says to make sure the firmware is updated.