[Samba] Samba4 4.5.0 acts as fileserver - there is not possible to login to !

[CpServiceSPb .]

I built from a scratch Samba4 4.5.0 version at Ubuntu 14.04 Lts x64.
Samba4 is set up as Standalone server, and  nmbd, smbd and winbind daemons
are started.
User to OS is added by:
useradd -s /usr/sbin/nologin user -g 65534 -p password
then user is added to Samba4
/usr/local/samba/bin/smbpasswd -a user

After attempting to login to Saba4 server and provide usr/pass,
requestiong  user/pass is appeared again.
And it is notpossible to login to server.

The same configuration was working at 4.4.4 version.

What is wrong ?

CpServiceSpb