Hi, how are you??
I have problems with same ACS 4.2 with Peap authentication. Not all but same machines does not authenticate. When you go to the Fail attemps in the ACS logs you can see this mesege "Authen session time out : Challenge not provided by the client". Is anyone that has pass throw this experience?? Anyone knows what can i do to solve this?? Please let me know. Thanks a lot.