Hello, The node (ovirt2) however is having consistent problems. The follow sequence of events is reproducible and is causing the host to enter a "NonOperational" state on the cluster: * Host ovirt2 installed * VDSM ovirt2 command ConnectStorageServerVDS failed: Message timeout which can be caused by communication issues * Host ovirt2 is not responding. Host cannot be fenced automatically because power management for the host is disabled. * Host ovirt2 cannot access the Storage Domain(s) <UNKNOWN> attached to the Data Center DataCenter1. Setting Host state to Non-Operational. (5/27/1912:43:22 PM) * (Banner appears in GUI) Failed Activating Host ovirt2.witsconsult.com * Failed to connect Host ovirt2 to Storage Pool DataCenter1 (5/27/1912:47:07 PM) * Host ovirt2 cannot access the Storage Domain(s) <UNKNOWN> attached to the Data Center DataCenter1. Setting Host state to Non-Operational. (5/27/1912:47:07 PM) * Host ovirt2 is not responding. Host cannot be fenced automatically because power management for the host is disabled. (5/27/1912:47:07 PM) * VDSM ovirt2 command ConnectStorageServerVDS failed: Message timeout which can be caused by communication issues (5/27/1912:47:07 PM) I can then re-activate ovirt2, which appears as green for approximately 5 minutes and then repeats all of the above issues. What can I do to troubleshoot this?