[Samba] Cannot join domain

[Claudia Rodriguez Brasicott]

Hello, I just configured a computer on my local network to work as a PDC
with Samba, although I'm not able to join the Domain from the windows
computer I want to add. I though it was that the server was unreachable, but
I can ping the server from the computer and viceversa. If someone please can
help me, I'll appreciate it.

The smb.conf file is here:

-------------------
[global]
   workgroup = LGD
   netbios name = LGD-SERVER
   server string = %h server (Samba, Ubuntu)

   passdb backend = tdbsam
   security = user
   username map = /etc/samba/smbusers
   name resolve order = wins bcast hosts
   domain logons = yes
   prefered master = yes
   wins support = yes

   # Set CUPS for printing
   printcap name = CUPS
   printing = CUPS

   # Default logon
   logon drive = H:
   # logon script = scripts/logon.bat
   logon path = \\%N\profile\%U

   # Useradd scripts
   add user script = /usr/sbin/useradd -m %u
   delete user script = /usr/sbin/userdel -r %u
   add group script = /usr/sbin/groupadd %g
   delete group script = /usr/sbin/groupdel %g
   add user to group script = /usr/sbin/usermod -G %g %u
   add machine script = /usr/sbin/useradd -s /bin/false/ -d /var/lib/nobody
%u
   idmap uid = 15000-20000
   idmap gid = 15000-20000


   # sync smb passwords woth linux passwords
   passwd program = /usr/bin/passwd %u
   passwd chat = *Enter\snew\sUNIX\spassword:* %n\n
*Retype\snew\sUNIX\spassword:* %n\n .
   passwd chat debug = yes
   unix password sync = yes

   # set the loglevel
   log level = 3


[homes]
   comment = Home
   valid users = %S
   read only = no
   browsable = no


[printers]
   comment = All Printers
   path = /var/spool/samba
   printable = yes
   guest ok = yes
   browsable = no


[netlogon]
   comment = Network Logon Service
   path = /home/samba/netlogon
   admin users = Administrator
   valid users = %U
   read only = no


[profile]
   comment = User profiles
   path = /home/samba/profiles
   valid users = %U
   create mode = 0600
   directory mode = 0700
   writable = yes
   browsable = no
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