Comcast Secuity Router
I am a Comcast Tech. Unfortunately, once the install is complete the security router locks everyone out "even the tech". You will notice that you can't even see the security router on the network. As long as u do not have cameras you can put your router in front of the Comcast security router and you should be fine. However, if you do have cameras they would not be seen from behind your router. The setting in the control panel that lets your router be seen on the web is hit or miss at best. I hope this info will be helpful.