I have a wireless access point/router with a 4 port switch and have a similar hookup. My internet connection (cable modem service) hooks up from the cable outlet in the wall to my cable modem. I have an ethernet cable that connects the cable modem to my router. Another ethernet goes from the router to my PC. There are 3 open slots where I can plug in ethernet cables to connect additional computers (and of course since this is a wireless access point, i can access the internet on my laptop that has a built in wireless card).