Ok I think I have resolved the issue. It appears that if you do not activate either a paid license or the trial, it fails with the import because many of the features are not active until you enable the license and then update the XOA appliance. Once I activated the trial and then updated the appliance again, I was able to successfully import the backup. My hesitation with activating the license before importing the config as the licenses are bound and I didn't want to have to redo the setup if the config did not import. Again, it looks like I need to activate the license first and then I can import the config.

@tsukraw No worries! Just glad that we can all help each other out!

@olivierlambert could this error be more verbose? I think this error should say: Cannot write file .keeper_uygbivt5lv on remote <whatever the remote name/address> NFS is mounted but XOA cannot write to mounted dir. This happens in NFSv4 as default when sec=sys on NFS server (that is the default).