I realize this may be an IAS issue, but I am posting here just in case someone has seen this problem. My Aironet 1231 is configured to use DHCP. I can ping the hostname of the AP and connect to it. When I configure IAS with the AP as a RADIUS client using its hostname it works for a few days until the IP of the AP changes. It's almost as if IAS is caching the IP associated with the DNS hostname. I have to go into IAS and re-type the name and click verify for it to work again. Using static IP addresses works just fine but these AP's will be moving to different vlans. I will post this in the MS forums too.
Thanks in advance. NH