samba - Jul 2014 - Samba 4.1.6 Active Directory Server not properly showing Xubuntu 14.04

Hello to the list!
I was trying to follow all the FAQ and guide about it but I still didn't 
obtain the result.
I'm using the samba4 obtained with apt-get and Samba_internal as dns 
solution. I attached the importants file of my last attempt but the 
result is always the same.
Samba 4 is working properly because the shared folder is visible from 
the other Windows 7 PCs of the network and also writable. I can access 
also to the Users folder.
I also tried like an older guide said to add the profiles section into 
smb.conf.
Whenever I try to make a samba_dnsupdate --verbose I obtain a failed to 
find for each line that is is supposed to update.
Between the try it happen once that it was properly updating it... but 
it wasn't visible by the pack on windows that is used to handle a remote 
Active Directory Server.
It happen once that I was able to see it as an Active Directory 
server... and even check the detail of the users I created but it didn't 
work after the reboot.
So:
network 192.168.1.x
active directory server on 192.168.1.98
realm internal.playtravel.it
hostname samdom.internal.playtravel.it
Please help me 'cause I really have no idea what to try next...
I even made the active directory server as a wins server and set it up 
into the clients... no result
of course on the client the first DNS Server is 192.168.1.98

Looking forward to the replies

Thanks a lot

Francesco Pennelli
pennelli.francesco at solaristravel.it
-------------- next part --------------
samdom.internal.playtravel.it
-------------- next part --------------
127.0.0.1	localhost
192.168.1.98	samdom.internal.playtravel.it	samdom

# The following lines are desirable for IPv6 capable hosts
::1     ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
-------------- next part --------------
[libdefaults]
	default_realm = INTERNAL.PLAYTRAVEL.IT
	dns_lookup_realm = false
	dns_lookup_kdc = true
-------------- next part --------------
# Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)
#     DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
nameserver 192.168.1.98
nameserver 8.8.8.8
search internal.playtravel.it
domain internal.playtravel.it
-------------- next part --------------
# Global parameters
[global]
	workgroup = playtravel
	netbios name = SAMDOM
	wins support = yes
	local master = yes
	preferred master = yes
	os level = 65
	server role = active directory domain controller
	interfaces = 192.168.1.0/24 eth1
	bind interfaces only = no
	dns forwarder = 8.8.8.8
	allow dns updates = nonsecure and secure
	idmap_ldb:use rfc2307 = yes
	server services = s3fs, rpc, nbt, wrepl, ldap, cldap, kdc, drepl, winbind,
ntp_signd, kcc, dnsupdate
	server string = samba 4.1.6-ubuntu
	username map = /etc/samba/smbusers
	security = user
	domain logons = yes
        logon path = \\%L\profiles\%u\%m
        time server=yes
        encrypt passwords = yes
	guest ok = yes
	guest account = nobody

[netlogon]
	path = /var/lib/samba/sysvol/internal.playtravel.it/scripts
	read only = No

[sysvol]
	path = /var/lib/samba/sysvol
	read only = No

[Condivisi]
	path = /Condivisi
	writeable = yes
	browseable = yes
	guest ok = yes

[Users]
	directory_mode: parameter = 0700
	read only = no
	path = /Users
	csc policy = documents
;	browseable = yes
	valid users = Administrator, SAMDOM$, giusy, krbtgt, monya, nobody

[profiles]
	path = /home/samba-ntprof
	writeable = yes
	create mask = 0600
        directory mask = 0700
        browseable = no