How can I see what devices are hooked up to my internet? I have a computer, laptop, and a cell phone that is mine. My grandson also lives with me and I don't want him to be able to hook up his game system. However, he is old enough to know how to look at the tv and find the password. How can I either make it so he can't see the password on the tv's or how can I fix it on the comouter that he can't get on the game system with the interent.