My high school has an open wireless access point, but ever since around mid december I've not been able to access it. I brought my PSP to test it and the PSP worked fine and got access to the internet. My friend has an iBook and he can access the internet with it. When I try to connect it says that the access point uses a list of computers to determine what can connect and it says mine is not on the list, but as was aforementioned I can bring my PSP and connect to the internet with that. So, any ideas as to what can solve this and let me connect to the school network?