Fails to discover second Device

[scorpionmit01]

I added a second Eco Plug device. It looks like it should automatically discover it in the scanning.

If I have the device ONLY on the IOT network, it finds the plug.
If I have the LAN on the IOT network, and Wifi on a reasonable network, it finds the plug.
If I have the LAN on my normal network, and Wifi on the IOT, it doesn't find the plugs

So it's NOT finding the new device. It won't find the device (via broadcast) unless the primary network is the IOT device.

Once the device is "discovered" - I can switch the network back on and it won't lose track of it.

1. How can I scan all networks devices, not just one of them?
2. Is there a way to automatically include the IP address instead of discovering?