ok long story short my father moving in with us has a android tablet and needs a wifi connection to use it. I currently have a modem/router to a network switch wired through the house on ethernet wiring and don't want to change that out. so I read somewhere briefly that that can disable NAT i guess in the router and turn it into a switch? wasn't sure how to go about doing that without screwing my whole network up, I'm somewhat an amateur about networking. so just wanted to know if i can hook up a wireless router to an existing network and how to disable the NAT. or maybe is there a adapter to add to my existing network from ethernet. thanks in advance.