[libvirt-users] Connection to libvirt

My attempt to install a host using oVirt results in the following message in the host: libvirt-buests.sh[3679]: Unable to connect to libvirt currently. Retrying .. 10Please enter your authentication name: Please enter your password: after several such retries: libvirt-buests.sh[3679]: Unable to connect to libvirt currently. Retrying .. 1Can't connect to deafult. Skipping. What may be the cause of this? Thanks, Ori.