That could be any wiring center so back to the maker to ask them to tell you which of the blue cables to plug into your xfinity's LAN ports so you can plug in the TV upstairs.
I recently moved into a Ryan Home. In the basement is a panel with home network setup. I have no clue what I'm doing. We have a xfinity gateway modem but right now everything is running wirelessly. How do I setup a network so I can plug the tv and computer into the wall with the blue cables?http://i32.photobucket.com/albums/d42/maraccuglia/image1_zps0e86nova.jpg

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic