Join pfsense 2.6.0 to domain with ldap

we’re trying to join pfsense to the UCS domain controller, but we’re getting connection errors that we can’t resolve. all other tests with name resolution are ok and functional;
when trying to login it shows errors;
tela 1
and
tela 2
and
tela 3

with that we were unable to authenticate PFSENSE WITH UCS. HELP US

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