title: Allow only some devices to Sonos speakers (Unifi system)
body: <p>We have 2 Sonos speakers on the same Wifi (ruled by a Unifi rooter)</p>
  <p>We would like to be able to allow / forbid some devices to connect to those speakers. As Sonos doesn’t provide any built-in solution for this kind of need, is it possible to handle this with Unifi systems ?</p>
  <p>Using 2 different networks could fix this, yet it doesn't answer some business requirements.
  Thanks</p>