New desktop computer doesn't see connections

[n00bikscube]

I just got a new Asus desktop computer but there is a problem with connection to any networks. It has what looks like a computer, a cable and a red X on the bottom. When clicked it says 'Not connected' and says that there are no connections available.

I'm not sure what else to add so information will be available upon request.

Thanks in advance,
n00bikscube