We have been trying to connect Win98 clients to Server 2008 without any luck. We've installed DSClient (client), setup NTLMv2 seemingly correctly (client/server), enabled WINS (client/server), disabled forced signing of communications (server), and still receive an Invalid Password error.
What's strange is that the Security event log shows the client logging in, obtaining user/group permissions, then immediately logging out. There are no errors on the server side. I inspected the packets (wireshark), and it appeared that the Win98 box was receiving the success notification, but then still showing the error.
Any insight on how to address this? Is there a way to debug the session from the Win98 side?
FYI: We currently cannot upgrade to XP/Vista/Win7 until our current DOS-based order processing system is replaced. At the same time, our company is growing so we need to upgrade beyond our old NT 4 servers currently used for file storage.