I have recently upgraded a WLC to version 5.0.148.00 from 184.108.40.206. And since this upgrade I receive an authentication error on the client saying - The wireless network authentication failed because you entered the wrong single sign-on username / password.
I am using WPA2 with EAP-FAST as the authentcation mechanism. Cisco ACS is running 4.1 and the clients are using Cisco CB21AG cards and are using 4.1
In ACS in the Authentication Failed Attempts I am constantly seeing a Authentication Session Invalidated message.
Has anyone seen anything similar following an upgrade to the WLC?