FreeNAS-11.1 with Rancher VM | losing Host after reboot

hello
i have the following strange behavior
i followed http://doc.freenas.org/11/vms.html#docker-rancher-vm
when in Rancher i add the Host and do a restart of the VM (in FreeNAS) the Host is not there anymore.
I also added kubernetes as management - this also is gone!

any suggestion what to check?

have a nice day
vinc