boxtop wrote:
I have a similar question/concern. I am setting up new Orbi RBR20 as an AP and trying to understand the guest wifi. I did NOT check that box to allow access to other guest/main network. I connected my mobile phone to the guest network. I then tried to connect a Google Home speaker to the Google Home app on the mobile phone. I couldn't connect the speaker through the guest network (since I didn't check that box) but I could connect it using the main network. I works.. I can see and control the speaker from my phone. But my understanding is that it shouldn't work...right? Because my phone is on guest network, speaker on main network... and no box is checked... so why is my guest network phone able to see and control my main network speaker?

A lot of "Internet of Things" (IoT) devices work through the "cloud". i.e. the smartphone app connects to the cloud which relays commands to the devices. I do not have Google Home, but perhaps you could answer this question:

"Are you able to control the Google Home speaker using the app when not at home?" (A rather bizzare question to be sure. One wonders how a person would be able to know. Suppose, for example, you called home on the phone and said to someone, "I am going to tell the speaker to play Mozart. Do you hear it?" The point is, if you can control the speaker when not even connected to the Orbi, then the control is going through the cloud. This is what I do with my Nest thermostat when I tell it to turn down the AC before I get home.

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