SOLVED : Are MoCA adapters allowed by Xfinity....

Finding mixed answers to my questions, so I am looking to clarify.  Are MoCA adapters allowed to be used by my client PC's to access the Internet while using an Xfinity modem/router.  I purchased a MoCa adapter for one of my PC's and I get a link lights for MoCA and Ethernet, but no activity.  No data appears to be traversing the wire.  I have a the following setup : 

A MoCA adapter connected to my PC via Ethernet cable and to the wall Coax outlet.

I have enabled MoCA in my Xfinity modem.

I have ensured that the MoCA adapter outlet is connected to a MoCa compliant amplified splitter ( supplied by Xfinity ) that has a built-in PoE filter.

Modem is connected to the same splitter, but no MoCA adapter at the modem side as the modem is MoCA capable.

Does this sound right?  Any ideas why I am not seeing data traverse the wire?  Thank you in advance.