I have a Netgear FS605 v3 router, and i'm trying to expand my network. The router is connected to the cable modem with cat5 cable. I have 2 laptop connected to the router but i'm only able to get internet connectivity in one. The first laptop i turn on, get the signal and the other one will show no connectivity. I have restarted all the devices many times but no luck. Can somebody explain me how to get this solved. Thanks.
Your problem is the Netgear FS605 is a switch not a router. Your ISP probably only provides you with 1 IP address, and the first computer to connect to the network will get it. You will need an actual router if you want to connect more than one computer without buying additional IP addresses from your ISP.
Here are a couple of questions that might help you in choosing a router: