I can’t see Mu-so in the Naim app multi room screen with a Naim master connected

1. If you are using Mu-so in multi room mode from the naim app with a naim master and can't see Mu-so in the multi room screen, there are many possible reasons for this. If you can see AirPlay but not devices in the room menu this indicates that UPnP discovery is being blocked by your router. Try using a cable modem or another router as a start.