Windows XP SP3
Novell Client 4.91 SP5
ZCM Agent 10.1

After booting a workstation the first login will fail with "Tree or Server not found" but following logins are fine until the workstation is rebooted. The same machine at this time can be connected to via remote management and we're using LDAP Contextless which is behaving fine, ruling out network connection issues.

I've attached the nwgina log and from what I can see it doesn't even log the login attempt.