If I understand correctly, my Netgear Super G adapters can handle both Super G mode and XR, however, my Check Point 500W UTM appliance gives me an error message when I try to enable both Super G mode and XR. It says both cannot be enabled at the same time. Could this be just a Check Point issue, or is it not possible to enable both Super G and XR at the same time? I can't find anything in the manuals for either product that address this.