Phantom device on a 172.* IP address with QNAP client

[Buzzatronic 0]

I'm seeing a strange device on my network that looks like a phantom.  My network is a 192.* network yet this device is appearing as a 172.* IP address.  I think it's a bug in the QNAP version of the Domotz client I'm running since the MAC address for the machine is the MAC address for my 2nd LAN port on my QNAP which is not actually connected to my network.

 

I've attached a screenshot of the device in question.

 

Any idea how I can delete it since it's not real?