LDAP Authentication from MAC OSX

Taking up this theme I want to use client authentication against the NS-LDAP on my Macs (High Sierra, Mojave and Catalina)

My NS-Setup:

Start TLS: Disabled
users_groups.ShellOverride:true
Bind password: ########
Base DN: dc=directory,dc=nh
Bind DN: cn=ldapservice,dc=directory,dc=nh
LDAP URI: ldap://127.0.0.1
User DN: ou=People,dc=directory,dc=nh
Group DN: ou=Groups,dc=directory,dc=nh
two defined users (‘admin’ and ‘marko’)

Client side:
image

empty user directory:

If I try to authenticate me:
image
image

Whats I do wrong?