@Solla-topee the device is a wireless 900 Mhz radio that bridges between our local internet and a local 900 Mhz network. Our overall network involved the cable modem (which acts only in bridge mode)...

Thanks @Solla-topee but the problem is the device doesn't show up on Tether, nor on my router's IP table. I can't find its MAC anywhere either, not on Tether or on the router's list. It's literally...

When I use the Tether app (very handy by the way, thanks) to try to find the IP address of an ethernet-only device that's connected to the RE450, I can see 6 clients, but none of them are my...