[ovirt-users] Staring cluster Hosted Engine stuck - failed liveliness check

What is the correct way to shut down a cluster ? I shutdown my 4.1 cluster following this guide https://github.com/rharmonson/richtech/wiki/OSVDC-Series:- oVirt-3.6-Cluster-Shutdown-and-Startup as the NAS hosting the nfs mounts needed rebooting after updates. ( I realise the guide is for 3.6, surely not that different ? ) However hosted engine isn't starting now. failed liveliness check I've tried connecting from the host starting the HE vm to see what's going on with: virsh console HostedEngine I don't know what authentication it requires, tried engine admin details and root os... hosted-engine --add-console-password Enter password: no graphics devices configured unsurprisingly, remote-viewer vnc://localhost:5900 fails with Unable to connect to the graphic server vnc://localhost:5900 What can I do next ?