Note that the message is coming from SSHD, not from Centrify. This could be an issue with the system (not configured for PAM or simply expecting keys).
The best bet for you is to debug SSH
To turn on debug
- Next run "<path_to_sshd>/sshd -ddde -p 2222" to start the SSHD server in the foreground with verbosity turned on.
- From the ssh client, connect to the SSHD server on port 2222, "ssh -p 2222 -vvv <hostname>" and try to authenticate.
- Analyze the output of the foreground session, most likely you'll be able to identify the culprit.
In addition, please make sure that your're at least at 5.3 for community support.