[Samba] Samba 3.0.8 + Windows SP2

[Yavor Atanasov]

Hi,

I have problem with Samba 3.0.8 (Debian package 3.0.8-2).
After start or restart I can look all computers (Windows XP stations).
After a half hour all Windows XP with SP2 are invisible. You can
connect them by \\computer_name, but to unhide you must restart
Samba.

Samba settings:
  panic action = /usr/share/samba/panic-action %d
  workgroup = workgroup_name
  server string = %h server (Samba %v)
  invalid users = root
  log file = /var/log/samba/log.%m
  max log size = 1000
  syslog = 0
  encrypt passwords = true
  passdb backend = smbpasswd guest
  socket options = TCP_NODELAY
  local master = yes
  os level = 65
  preferred master = yes
  wins support = yes
  dns proxy = yes
  name resolve order = wins lmhosts host bcast
  passwd program = /usr/bin/passwd %u
  passwd chat = *Enter\snew\sUNIX\spassword:* %n\n 
*Retype\snew\sUNIX\spassword:* %n\n .
  obey pam restrictions = yes

Any suggestions?

Yavor Atanasov