I have Comcast triple play and one of their wireless gateway all-in-one modems. I want to use my Linksys EA-6900 router for a couple of reasons, namely because it is way better than the Comcast unit and secondly, neither of my TiVo boxes will connect to the internet via the Comcast unit. How do I make the connection? Simply connect the two with a CAT5 cable from Port 1 on the Comcast to WAN on the Linksys? Thanks!