I have the firewall ports open.
The errors are back again.
From sssd debug logs i think i see here 2 problems, one with openldap and the other with sssd:
1 - sssd is trying to make a cldap call to port 3268 (cldap://dc1.test.com:3268) which is wrong, SAMBA4 AD is listening for cldap on port 389 UDP.
2 - I had tcpdump running on my laptop and on AD DC server for udp port 389, and no packets left my laptop or arrived at the AD DC server when run: ldapsearch -LL -H cldap://192.168.10.11:389 -b "" -s base '(&(DnsDomain=azar.pt)(NtVer=\14\00\00\00))' ldap_bind: Can't contact LDAP server (-1)