Move Client via IP subnet

Hello,

I have been using the moveclient.vbs using the host name and it has been working out real good.  Now I want to move clients, based on IP and I can't seem to get it to work.

As per the directions, I am putting in the IP address a comma, then the path. but it doesn't clear the machines in the default group that match this criteria.

Example:  10.189.0.0/16, Test\ChildGroup

Why isn't this working?