I'm testing Active Directory authentication for my Samba setup.

Currently I can get my server to join the Active Directory and will authenticate with the Windows server (Win2K3 server), giving me access to the shares on the Unix box.

After 15minutes or so, however, the shares become unavailable. I can restore access to them by rejoining the Unix server to the Active Directory Domain (using the smbnet rpc join command.) Everything works just fine for another 15 minutes or so and the whole process starts over again.

Is this some problem with the AD doamin or is it my Saamba setup?

Below is my smb.conf's [global] section:

[i][global]
workgroup = ADDOMAIN
server string = Samba Server
netbios name = OS6
interfaces = net0, lo0
bind interfaces only = Yes
security = ADS
realm = ADDOMAIN.COM
encrypt passwords = yes
local master = no
domain master = no
preferred master = no
dns proxy = no
log file = /var/log/samba/log.%m
max log size = 50
socket options = TCP_NODELAY[/i]

Any suggestions would be much appriciated.

It looks like you have 2 NICs in the unix box. Could that have something to do w/ it?
Also, did you look at the event viewer on the windows box?