ACS 5.2 authentication log is always empty

[lanwei Li]

Hi All:

     I use ACS 5.2 and test TACACS+ authentication from router is no problem. But I cannot see any Tacacs+ authentication log in "Monitoring and Reports ->  Authentications - TACACS - Today" , And I found that I cannot see and log event in "Monitoring and Reports".

     How can I fix this problem?

Thanks!