[cvsnt] Authentication protocol rejected access - Problem

[Eoin Maguire]

Hi,
 
   I'm new to CVS and am trying to set up CVSNT on a windows network. I have installed CVSNT on a Windows 2000 machine which is acting as the server and have tried to connect to that server using WinCVS from my local machine. I constantly get the error: "Authentication protocol rejected access". I have set up CVSNT as per the online instructions *exactly* as they say to do. On the server I can even get it to display the directory listings by using 'cvs ls -l -R' but when I try to do the same from my local machine --> Server i get the authentication error.
 
Given that I have followed this guide:
 
http://web.telia.com/~u86216121/InstallCVSNT.html#InstallSteps
 
to the letter, and have tried multiple options , I still can't get this to work.I'm using SSPI because we're all logged on to the same windows network and I can sucessfully use the network to view the contents of the server using widows explorer and am never asked for a password. The only thing I can maybe see a problem with is the fact that the server is on a different domain than the rest of the users. But even putting my domain name before my username in the Admin section of WinCVS doesn't make a difference. There's no firewall software in operation that I know of. I'm using Windows XP pro SP2 and the server is running Win 2000 (I presume with all the latest patches).
 
Can anyone shed some light on how to get these two systems to sucessfully talk to each other. Or even suggest a way to test whether it's something external to CVS that is hampering the connection.
 
Thanks.

Eoin Maguire