Router shows 2 ips

I have set a static ip on my Roamio, but when I check the dhcp table on my router the Roamio is listed with a second ip address. I am trying to get kmttg to work out of home.

Is it better to have the router use the mac adddres to assign a static ip and the Roamio use hdcp or have the Roamio pull a static ip by setting the Roamio with a static ip?

Thanks