Error create volume NSS on OES 2 SP1 Linux

[amb73n]

Hi,

I have an OES 2 Linux where I want to install SP1 iPrint.
Before creating the object manager, I have to create a volume on the server where to store the drivers. When iManger at the volumes, select Create a volume, I get the following error "This user does not have the correct credentials to authenticate to the CIMOM client."

What could it be?

thank you very much.