Empty user table with ldap as account provider

With which program or tool do you want to read the user list?

Maybe you need to disable strong auth on your NS AD server to make it work:

EDIT:

If I understand you correctly you want to use a remote AD but having local LDAP installed, I don’t know if this is possible. You may join the AD with the firewall but a combination of local LDAP and remote AD seems not possible to me.