Logging on to NT in a 2000 domain

I’ve set up a lab to do some recovery testing. There are only two servers, one is a 2000 DC and the other is a NT member server. The NT member server was able to join the domain, but after the reboot, I can’t logon to the domain. I get a “domain is unavailable” error. WINS and DNS are both running on the DC and resolving correctly, I’ve verified that the 2000 server is listed in WINS as DC for the domain. I’ve also ensured that this isn’t a spanning-tree learning stage problem. I even tried a lmhosts entry in the NT box with a DOM entry for the DC. Pings work to both the address and machine name from both sides. Also, when I set the member server up with 2000 it worked fine. I only have this problem when the member server is NT. Any ideas?