I have two networks which belong to two different companies in a building and one broadband internet connection. I decided to buy an inexpensive 4 port router and plug each hub to 2 of the 4 ports on this router. Questions are: 1. Is it possible to have both networks use the same internet connection in this way? 2. Is it possible to prevent the computers see the other network's computers? If yes, how? Thanks M. Civan Camkiran