F5 BIG-IP Active Directory users authentication through virtual server problem

Hello all,

I'm trying to configure the authentication of the F% administrator users via AD.

Because it isn't possible to put more than one server in the Remote - Active Directory configuration I created, as suggested, a virtual server that monitors all my AD controllers.

Unfortunately it looks that the authentication against this virtual server doesn't work.

I tried to test the credential configuration with ldapsearch and it looks to work fine if I use in the -H option directly he IP of my AD controller. Otherwise ehsn I use the virtual server IP there I got an ldap_sasl_bind(SIMPLE): Can't contact LDAP server (-1)

What am I missing?

Thank You

Regards