I have a long house, that is covered with multiple starlink mesh nodes. In most rooms I have S1 speakers throughout the house with a larger set up in the living room. No speakers are wire connected.

When I try group all speakers, I'm presented with the “Wireless range extender” error. 

Wireless range extender Some Sonos products are using the WiFi from a range extender device. If you include one of these in a room group, you won't be able to play music in that group. To ensure playback in all grouped rooms, you'll need to permanently wire a Sonos product to your router.