Just seeing if anybody has this issue or can point me in the right direction.
We are running ACS 5.1 connected to AD. When a user changes their password in AD after it expires, they cannot get into anything that authenticates through ACS. No TACACS, no RADIUS. The error that comes up in the log on ACS is:
24407 User authentication against Active Directory failed since user is required to change his password
The catch is, as I said earlier, the user has already changed their password at this time. They can get into everything that requires AD authentication but it blocks them from TACACS and RADIUS which affects device access as well as VPN access.