I have Cisco ACS3.2 (windows) and had pix 6.3(4) and access vpn users were authenticating from ACS with radius protocol.
I upgraded pix ios to 7.2(2), now access vpn users can authenticate till group and cannot authenticate user credentials from ACS.
I tested from PIX for the authentication for username and password with test command, its working fine.
Any suggestion is highly appreciable.
Thanks & Regards