[ovirt-users] non operational node

hi there, i'm testing ovirt 4.2 because I want to migrate all our VMs from XenServer, I have set a engine and a node, when conecting to the node I receive a "non-operational" and I cannot set it to ON. I'm an experienced engineer, but I'm new with oVirt, any clue where do I have to start to check ? thanks a lot. [image: Inline images 1]