Hi all, We've recently upgraded our main production Samba server (Solaris 9) to 3.0.24 (compiled from source) We're now getting a spate of problesm which look like:- [2007/03/19 12:02:11, 3, pid=436] smbd/sesssetup.c:reply_sesssetup_and_X_spnego(691) NativeOS=[Windows 2002 Service Pack 2 2600] NativeLanMan=[Windows 2002 5.1] PrimaryDomain=[] [2007/03/19 12:02:11, 3, pid=436] libsmb/ntlmssp.c:ntlmssp_server_auth(672) Got user=[] domain=[] workstation=[68S7C1J] len1=1 len2=0 the transaction then goes onwards to contact the DC (seemingly OKay) and produces [2007/03/19 12:02:16, 3, pid=436] auth/auth.c:check_ntlm_password(270) check_ntlm_password: guest authentication for user [] succeeded Not really surprising that it's authenticated user '' as guest. but not helpful either. I don't know for certain that this is the first event in the chain, I only turned debugging up on one smbd process after the problem became apparent. It's not happening on all connections, nor to all users. We're looking at generating a level 10 log of the issue, but it's time for lunch just now and I'm starving. I couldn't find anything like this elsewhere. Mac Assistant Systems Administrator @nibsc.ac.uk mac@nibsc.ac.uk Work: +44 1707 641565 Everything else: +44 7956 237670 (anytime)