Test-NcExportAccess send no output

Hello,

I am trying to use the Test-NcExportAccess command from the Powershell toolkit ver9.8, and each time I use this 

command it send me nothing.

Here the command I use :

Test-NcExportAccess -VserverContext $Vserver -Volume $Volume -ClientIp $item -Protocol $Protocol -AuthenticationMethod "sys" -AccessType "read"

I am testing this with an host that have access to the volume on a 9.5P16 cluster.

Regards,
Jonathan