Port forwarding with Google WiFi

I have Google WiFi and am trying to setup my wifes phone so she can watch our Tablo outside of our home. I need to setup port forwarding. I open the Google WiFi app and I can see my phones MAC address. After that I think it said that I need to restart my Tablo and then it will work. I am at the office now, so don’t remember exactly. I am going to work on it some more tonight.

Additional problem is that my wifes LG G3 MAC/IP address is not showing up…but that is using the Google WiFi app on my phone. Do I need to install the Google WiFi app on her phone to be able to see her phones MAC/IP address?

Sorry if this doesn’t make sense…I know just enough about tech to get me in trouble as the saying goes, LOL.