You can't use your laptop without the desktop connect It doesn't have a modem to plug into the phone line What do you need to buy?

You will need to use an Ethernet connection in this case. Ethernet is a lot faster than a phone line. You will need a coax jack and a modem in order to have an Ethernet connection. For more convenience, you can just get an Ethernet wall jack installed if you don't have one yet, and you can just get an Ethernet cable to connect from the Ethernet wall jack to your computer, giving you a high speed internet privledge.