[cvsnt] sspi protocol problem!!

[Raheel]

hi there,

I am sending my problem again on list. Previously i didn't get any hint from here (don't know why). Anyways, i want to use sspi protocol for cvs operations. I was using pserver before.

I defined my cvsroot like:

CVSROOT = :sspi:<ip_address>:/Test

F:\CVSWorking>cvs login
Logging in to :sspi:raheel@<ip_address>:2401:/Test
CVS password: ******
cvs [login aborted]: Authentication protocol rejected access

Environment:
Server:
    CVSNT 2.0.48
    Window NT 4.0 workstation

Client:
    Concurrent Versions System (CVSNT) 2.0.51a (client/server)
    Windows 2000 Professional

Note that user 'raheel' is in administrators group on NT 4 workstation (CVS server)

Any expert thoughts over it??