[ovirt-users] Ovirt-node don't communicate with qemu-agent

Hi all, I reinstalled one of the ovirt-nodes, with ovirt-4.5.4, and after the reinstallation the agents of the vms connected to this node cannot communicate with the ovirt-engine. ovirt-engine 4.5.4 any idea? VMs work perfectly, but the agent doesn't communicate. Best regards, Fernando Hallberg