Problem with Password changes on Redhat machines

[Andrew.Bridgeman at corusgroup.com]

I am currently trying to change the local root password on our Redhat
machine but i get the error below. The strange thing about it is that the
Unix machines have been can be changed with no problems at all, for some
reason the Redhat machines seem to think they are a NIS client but this
should not be the case. Does anyone have any ideas how i can stop this
error?

passwd
Changing password for user root.
New password:
Retype new password:
RPC: Can't encode arguments
The password has not been changed on nisserver.
passwd: Failed preliminary check by password service

Regards

Andrew Bridgeman
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