Why does grouped Sonos audio cut out but one speaker is fine?
Grouping multiplies synchronized traffic and exposes weak links, interference or topology problems. Identify the first failing room and test smaller groups.
Coordinator/group; weak node; packet loss; multicast; wired/wireless mix.
Sonos/network specialist.
Show the technical detail
On a managed Wi-Fi plan
Correlate client paths and radio busy periods; optimise weakest segment.
On another provider's router
Sonos diagnostics may be required.
What to be careful of
Do not blame internet speed alone; local LAN matters.
Where this comes from: Official · see the original source ↗ · Draft—technical review · checked 17 August 2026