Can I set up a separate Sonos network for Airbnb guests?

Hi

I rent out part of my house on Airbnb. My internet connection is via a single broadband modem connected to three wifi access points. To provide guests with internet access, one of the access point devices hosts two wifi networks - my one and a separate one for the guests. I give the guests the credentials only for the guest wifi.

Now I’m trying to give them access to a single Sonos One, so that they can control that One but not the other devices and I can control the other devices but not that One.

I’ve tried everything I can think of without success. Most recently I:

• Created a new Sonos account
• Reset all speakers
• With a new phone, joined the guest wifi network
• Installed the Soinos app on the new phone and logged in with the new account
• Added the Sonos One to the new system.

However, the One can still be played to from my old phone connected to the main wifi rather than the guest wifi.