[Samba] home directories ask user for password

[Massimo]

Hi to all,
I have Samba configured as domain member with winbind and kerberos, I can access all share but I have some problem with the home directories because it ask me for password.

This is my smb.conf
[global]
        workgroup = domain
        netbios name = Manufac
        server string = Server di rete
        comment = server di rete
        encrypt passwords = true
        realm = DOMAIN..LOCAL
        password server = pdc01.domain.local
        security = ADS
        winbind enum users = yes
        winbind enum groups = yes
        winbind separator= +
        idmap uid = 500-100000000
        idmap gid = 500-100000000
        template shell = /bin/true
        syslog = 0
        log file = /var/log/samba/log.%m
        max log size = 1000
        dns proxy = No
        ldap ssl = no
        panic action = /usr/share/samba/panic-action %d
        invalid users = root
        template homedir = /home/%U
[homes] 
        comment = Home Directories
        browseable = no
        writable = yes
        public = no
        valid users = DOMAIN/%U
        create mode = 0777
        directory mode = 0777

I have the home directory created in /home/ with domain user right

Thank you in advance.

Bye