I’ve got 3 Sonos SL’s in our office, all connected to WiFi which is accessible to the company office LAN on one subnet. All the client machines are connected via Ethernet to another VLAN but can discover and connect to the Sonos devices just fine.

I just had to change our WiFi password, and re-set them up from scratch as they’ve been running untouched for a few years now. When they came back online and ran its firmware updates I now suddenly find the client cannot see the Sonos speakers from the other subnet although I can ping them no problem.

Only when I connect to the same subnet can they be discovered.

I can only assume the firmware update has changed the ability for them to be discovered across subnets so this is a pain as we have machines on different subnets depending on the role they play in the office.

Anyone know anything about this and any known solutions?