[ttyyzz]

"[...] far more prone to incompatibilities with users WiFi configurations [...]" <- Exactly this! With my Unifi gear, all the configurations that had to be tried out and tested were driving me crazy. From Multicast Filtering (IGMP Snooping), Multicast Enhancment (IGMPv3), Broadcast Contols, mDNS to even the fucking Spanning Tree Protocol on the Switches (STP vs RSTP). How is this plug and play? How are other users even getting anything to work when it comes to multi room and speakers being on seperate APs?!

[packetlost]

I've had what I think is this exact problem and it was solved by doing a factory reset on the Ubiquiti controller (I have a pre-production DreamMachine UDM). It only happened once and it was most certainly from a firmware update that corrupted some state/config on the system, probably in iptables forward rules if I had to make an uneducated guess.

[pintxo]

I have all speakers on Ethernet to start with. But I also had to put them into the same vlan as my phone, as I could not come up with a firewall config to span multiple vlans. It’s tricky.

[rcdemski]

Did you ever find a stable configuration? I’m struggling with Sonos/Ubiquiti something fierce

[ttyyzz]

Mostly did this: https://github.com/IngmarStein/unifi-sonos-doc

I had all speakers join my WiFi with none on LAN.