I have an Xfinity router that my pc is hard-wired to along with a "G-Box". This router also supports a wireless lan which my wife's laptop and our shared printer uses. We are about to "re-model" our home and my wife does NOT want to see a "hard" Ethernet connection wire going from the Xfinity router (which is next to my PC), to my "G-Box" which will be next to the TV in a different room. Can I purchase a 2nd router and just connect a "hard" ethernet connection from the new router to my G-Box w/o affecting the Xfinity router that will still be supporting my PC, and wireless devices??