Question. Right now I have a wireless router that connects 4 PC's via WIRED ethernet. Now I need to hook up a fifth and sxith PC. Can I SIMPLY add a hub to one of those router lines and extend out my wired network that way? So I want to be able to add a hub to connect an additional 2 PC's. Will all 6 PC's still be able to talk to each other like the four do now with just the router? Router to 3 PC's and Router to Hub to 3 PC's Can I do that and is it plug and play?