[Samba] WINS not updating after swapping network connections

[Michael Keightley]

Our domain controller is running Samba 2.2.8a on Solaris 8.
We have XP laptops.  We swap between a builtin network card, docking port and
wireless card.  All of these have separate IP addresses.
If I say, boot up with the wireless card, then remove it and use the builtin
network card, the IP address in wins.dat on the server doesn't change.  It
still has the IP address of the wireless card.  It means you can't browse this
machine.  Our backup software (BackupPC) also stops working.  
Should wins.dat not get updated when a machine changes IP address?   

Below is part of our smb.conf file:


[global]
  workgroup = SAMBA
  hosts allow = 194.80.198. 192.168.191. 192.168.198. 127.
  interfaces = 194.80.198.61/255.255.255.128 192.168.191.61/255.255.255.0 192.168.193.61/255.255.255.0
  log file = /var/log/samba/%m.log
  load printers = yes
  printing = cups
  printcap name = cups
  case sensitive = no
  preserve case = yes
  short preserve case = yes 
  domain master = yes
  domain logons = yes
  local master = yes
  preferred master = yes
  name resolve order = wins lmhosts host bcast
  wins support = yes
  os level = 65
  encrypt passwords = yes
  nis homedir = true
  security = user
  guest account = nobody
  homedir map = auto_home
  logon script = netlogon.bat
  logon path = \\%N\profile\%a\%U
  logon drive = q:
  socket options = TCP_NODELAY IPTOS_LOWDELAY SO_SNDBUF=16384 SO_RCVBUF=16384



Michael