I cannot reproduce
<?php
/*
# ================= DO NOT MODIFY THIS FILE =================
#
# Manual changes will be lost when this file is regenerated.
#
# Please read the developer's guide, which is available
# at NethServer official site: https://www.nethserver.org
#
#
*/
$conf['authtype'] = 'authldap';
$conf['plugin'][$conf['authtype']]['server'] = "ldap://127.0.0.1:389";
$conf['plugin'][$conf['authtype']]['version'] = '3';
$conf['plugin'][$conf['authtype']]['usertree'] = "ou=People,dc=directory,dc=nh";
$conf['plugin'][$conf['authtype']]['grouptree'] = "ou=Groups,dc=directory,dc=nh";
$conf['plugin'][$conf['authtype']]['userfilter'] = '(&(uid=%{user})(objectClass=inetOrgPerson))';
$conf['plugin']['authldap']['groupfilter'] = '(|(memberUid=%{user})(gidNumber=%{gid}))';
$conf['plugin'][$conf['authtype']]['groupkey'] = 'cn';
$conf['plugin']['authldap']['binddn'] = "cn=ldapservice,dc=directory,dc=nh";
$conf['plugin']['authldap']['bindpw'] = "Z59OUcMHGUaidA_x";
$conf['plugin']['authldap']['starttls'] = 1;
$conf['plugin']['authldap']['modPass'] = 0;
$conf['useacl'] = 1;
?>