[ovirt-users] Ovirt host becomes non_operational

I am setting up self-hosted-ovirt-engine (4.2) on centos7.4. While running hosted-engine --deploy script, it fails at "Check host status" with 'host has been set in non_operational status' error. logs on engine vm at /var/log/ovirt-engine/host-deploy shows ansible tasl for "add host" ran successfully, but yet after that the host becomes non_operational! Where can i find more information on this error? Thank you.