Windows 2000 Domain Login

I have a W2KPro and a Win98 computer that happily get DHCP and logon to a W2K Domain Controller. However, a Win95 workstation won’t log on to it using Microsoft Client, logon to Windows NT domain. When a static IP address is assigned, it happily browses the server, but you cannot logon to it at the network logon screen. I have all of the workstation names assigned as Active Directory Computers and users. I have checked and triple checked, everything is set identical to the Win98 Computer. I would really like the Win95 PC to use DHCP and login to the W2K Domain. Is there some limitation that I am unaware of?
Thanks in advance. Ron