Restoring from OVA backups, and changing IP, losing communications between nodes and how to restore
On occasion you might want to re-IP your lab environment and while the steps are fairly easy, ensuring you change it on the GUI prior to CLI changes and rebooting the subscriber node first. You may still find you run into errors when trying to check the dbreplication runtimestate post IP change. If you get the error, "Runtime state cannot be performed on a cluster with a single active node; aborting operation", you can fix it by ensuring you have the cluster publisher IP set in the subscriber and restarting the cluster manager service on both nodes.
set network cluster publisher ip <IP ADDRESS>
utils service restart Cluster Manager
admin:show network cluster
<IP> hq-sub.collab.life hq-sub Subscriber authenticated
<IP> hq-pub.collab.life hq-pub Publisher authenticated