UTM SSO domain join Windows 2019 domain

Question

Hi, 
 I tryed to use the SSO option to join an Active Directory but still fail. 
 I did open all udp and tcp ports microsoft need. Also checked time, dns resolving, ping all works 
 But still the UTM gives an error anyone here got it working ?

Renede Bie · Answer

Hi, 
 
 Did install me a new Server 2019 server with AD and DNS. Without any change not even firewall or NTLM settings I could join my UTM to the Windows active directory. 
 Have not found the issue why it did not work before.