Aiport won't work. Help?

[Mikeygh2]

My airport appears to be connected but it tells my in Network Preference that AirPort does not have an IP address and cannot connect to the Internet. I tried to renew DHCP Lease but nothing happened. I'm at a college and everyone else's macs work fine but mine and my ethernet cable connection works fine too.

 

[Kaveman]

So there is a Tick beside the correct base-station in the WiFi Menu.

 

[Mikeygh2]

A tick?

 

[Kaveman]

Yes, WiFi has to be connected to a WiFi base-station or Router. It shows you which one it is connected to by a tick (✓)

 

[Mikeygh2]

On my display in the top right corner the wifi symbol is lite up. But in Network it is not and says not connected.

 

[Kaveman]

The "Lite up" is just saying your WiFi is working not that you are connected to the network, which you obviously aren't.
To connect to a Wifi network you must select it from the WiFi menu, when you are connected it will have a Tick beside it.

 

[Mikeygh2]

Yes, it has a tick

 

[Kaveman]

I'm at a college

I'm guessing that the college will have some Proxy settings, you'll need to contact the Network Administrator.