PGP US 3.2 Add user doesn't recognize

Hi Experts,

I have an issue here in my test environment.

I've done Directory Synchronization, I have a admin credentials to access the AD, I've also enabled directory synch

I've tested the connected between my PGP server and AD Server, its connection is good. I've also place Base DN

But when I install my PGP Desktop, It doesn't detect the user and it doesn't enroll in my PGP Server.

Does the policy affect this issue? even if i manually add the user in the PGP server, it doesn't detect the user.

Thanks