port forwarding with my own router

user_wpen72 Hello there! Thank you so much for your post on using port forwarding to connect your security system. We do help manage a few ports by blocking access for network security you can find those listed here: https://www.xfinity.com/support/articles/list-of-blocked-ports None of the ports you listed are currently being blocked on our end. I would check out the steps here to make sure you have the ports correctly set up: https://www.xfinity.com/support/articles/port-forwarding-xfinity-wireless-gateway  make sure you are using the steps listed under: Set up port forwarding with the Admin Tool.