I wanted to move my modem/router (C1000z) to my room so I can hook my PS4 up using Ethernet cable. Problem is there's a Direct Tv thing hooked to it via Ethernet then it's also hooked to a CATV jack which is the main one of the house. So it won't worked with any other CATV jack in the house. Could I hook like a second router to the modem through phone line or DSL they call it on the modem/router. Cause I have to have the Direct Tv thing hooked up.