Dear community,
I am using cisco ACS 5.81.4 with WLC 5508 (ver 8.5) to connect users to a wireless network with PEAP (MSCHAPv2). My customers use mobile terminals and i see such errors in ACS logs:
Failure Reason: 12852 Invalid buffer received. Crypto processing failed
Acs received invalid encrypted buffer from client. Cryptographic processing of this buffer failed.
Verify that the supplicant of the client does not have any known compatibility issued and that it is properly configured.
Contact TAC.
why can this happen?
