[Samba] SAMBA 4 Member Server - Help please

[Peter Serbe]

> If wbinfo -u does show users, but getent passwd does not, this
> is likely your problem. 

Not necessarily. Try getent passwd administrator. If this works 
for all Your users, then it is just sssd not enumerating all the 
users, which does no harm at all. If getent passwd user does not 
retrieve the user information, then something is broken indeed. 

The next thing would be to check sssd. Does it start? Is the 
keytab not outdated? Do a kinit -k /etc/krb5.keytab. If this 
isn't working generate a new keytab.