How can i refresh ldap users?

I configured ldap server for user authentication. But i cannot see ldap user changing in nextcloud; for example i cannot see new users when searching contacts

Is there i job that i can/must run with cron?

The new ldap user can login to nextcloud without problems and then i can found him on the contacts list.

And i tried using occ ldap commands: with ldap:check-user it doesn’t find any user (old or new); same thing with ldap:search; and ldap:show-remnants returns and empty list also if i deleted users from ldap server.

What could be the problem?

Thanks in advance