Validating identity on a wireless network

I cannot get WPA2 enterprise to work on my network.

For Windows XP with SP1, Windows XP with SP2, Windows Server 2003, or Windows 2000 with SP4, you can specify the names of the servers that must authenticate the wireless client in Connect to these servers, from the properties of the Smart Card or other Certificate EAP type, available from the Authentication tab for the properties of a wireless network.

For Windows 2000 Service Pack 4 (SP4) or later or Windows 2000 Service Pack 3 (SP3) with Microsoft 802.1X Authentication Client, use the Ipconfig tool to display the adapter status and IP address configuration for the wireless network adapter.

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When I try to go into it jus says validating identity and doesn't bring you to the stage where it asks for the WEP key.

I tried it on the neighbors network and it got to that stage so I don't think the problem is the computer.