The school has a Cisco 4400 wifi manager with cisco wifi ap's. The wifi coverage is fine and all laptops and iPads access it fine.
However, the school has just purchased new laptops and these will not connect.

They see the wifi but will not connect. I have checked the passkey and it is correct. I have rebooted it but it will not allow them to connect. I have set up another wifi network within the controller and this will not allow any clients to connect. I just get an error saying client could not conner to wifi.

When I enter the passkey it tries to connect but then fails.

There is no mac filtering enable on the controller, I checked that first.

Any ideas