samba - Jun 2014 - Join to AD does not persist reboot, requires "net ads join"

Hi,

I'm using samba 3.6.3 on ubuntu 12.04. I'm using samba and winbind so 
that I can authenticate users via ntml_auth.

After configuring my smb.conf I join to the domain:

net ads join -U Administrator

And everything works fine, calls to ntlm_auth work as expected.

However, upon rebooting the server, I can't successfully use ntlm_auth 
as "no logon servers are available". I've found that I can fix
this by
either rerunning the 'net ads join -U Administrator' command above 
(which also requires typing a username and password), or by running 'net 
ads testjoin' (which does NOT require me to reauthenticate).

I would like to not have to do this at reboot. I realize I could just 
write a simple init script to do this for me, but I wanted to make sure 
I wasn't missing some important part of the setup. I have configured 
winbind, smbd, and nmbd to start at boot.

There's a bug on Launchpad which I've added comments to, though I think 
the bit about using "tdbbackup" ended up being a red herring:
https://bugs.launchpad.net/ubuntu/+source/samba/+bug/1291951

Thanks,
Michael

-- 
Michael Rodrigues
Technical Support Services Manager
Gevirtz Graduate School of Education
Education Building 4203
(805) 893-8031
help at education.ucsb.edu