As unbiased as possible, is it better to use ACS or W2K Server to setup PEAP with ACU6.0 (CB20A adapter) and 1220 AP? WHY?

I'm trying to set up a wireless network using Network-EAP on the AP (aironet 1200) with a Certificate Authority and Internet Authentication Service enabled. The client will not get an IP address and the AP log shows that it associates with the clien...