When installing the Scale clients of a cluster there might be problems depending on the network configuration.
It is possible that C$ cannot be accessed on the client or the Scale client installer and the installation script do not work without any errors.
Connect the keyboard and the mouse to the Scale client and install the Scale client software manually on each client. This means you need to install DELTAGEN on every Scale client.
Make sure that you choose the exact same installation path on every client, otherwise Scale will not work.