Why can’t the Sonos app find my speakers?
The phone and speakers must be able to discover each other on the local network. Guest isolation, VPN, different VLANs/SSIDs or permissions can block discovery.
Phone SSID/VLAN; guest network; local-network permission; VPN; mDNS/multicast.
Escalate to network engineering for VLAN/multicast design.
Show the technical detail
On a managed Wi-Fi plan
Confirm same trusted LAN and client isolation policy.
On another provider's router
Check provider guest-network behaviour.
What to be careful of
Do not disable business/safeguarding segmentation without approval.
Where this comes from: Official · see the original source ↗ · Draft—technical review · checked 17 August 2026