NPS on 2008 R2 with Aruba wireless controller

Windows XP SP3 client:

WPA2/AES for Association- PEAP for Authentication with Secured password(EAP-MSCHAP v2) without auto connecting with windows logon creds

Aruba:

SSID-WPA2/AES

There is no termination on the controller it is a pass-through authenticator.

I connect to the SSID and it asks for my Windows Creds, so the Aruba is passing it to the NPS. I receive this error when it is validating identity. "An error occurred during the Network Policy Server use of the Extensible Authentication Protocol (EAP)."