I have read quite a few posts such as https://en.community.sonos.com/controllers-software-228995/password-to-avoid-guests-changing-music-36704
I have a dual band router and guest mode enabled. As such, when connected on guest network and I try to access the Sonos via the Android app, I'm shown that Sonos is searching for the system and can't find it! This is great.
The issue is, whilst logged onto the guest network, when I use a casting app (to send music) I can access the speakers and as such, stream! This defeats the purpose of the guest network which was the advice given on the cited post above.
More worryingly, this actually appears to corrupt the guest setting on the router because afterwards, I can access everything via Sonos (whilst connected on the guest network). However, I am assuming this is an issue of the router, not the Sonos system!
I've seen many pubs/function rooms etc use Sonos systems and as such I have to believe there is a way to make it secure but I've just not found any tutorial or detail on how.
Is it possible? I believe there is no password (really?????) but I can't see a why to lock the speakers to a router either...
Any suggestions would be very much welcome