When it tries to save the target account, the below error occurs. It reproduced the problem on a few Solaris 10 box 100% sure.
PAM-CM-1341: Failed to establish connection channel to the remote host
The trigger to reproduce the problem is to select the following switch.
Account >> Password tab >> Synchronization >> Select the "Update both the Password Authority Server and the target system".
Reproduced Target server OS : Solaris 10 Sparc