Contributor I

Why is Sonos restricted to connecting to the 2.4 Mhz band?

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Why is Sonos restricted to connecting on the 2.4 Mhz band? I understand the narrow bandwidth (20-40 Mhz) conceptually prevents interference and provides longer range transmission (I'm getting dropouts from time to time), but that is not an issue on the 5 Mhz band for me. I have an Asus AC3100 router which has excellent range and a Docsis 3.1 modem. Getting speeds of 460-470 Mbps down/13-14 Mbps up @ 5 Mhz and 140 Mbps down/12 Mbps up @ 2.4 Mhz. Thoughts?

2.4Ghz

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ratty

In groups (a pair is just a special type of group) the system will try and use Direct Routing between nodes for the stream, effectively bypassing the spanning tree topology. This also works in Station/WiFi/Standard mode, which is why Sonos recommend that where there are multiple APs they share the same channel.

Do you have any reference for that? The topology is basically on ethernet level, not sure that they can actually control the dataflow from the app-level...

The STP they use is a modified version so presumably they can do what they want, using 'blocked' SonosNet tunnels where appropriate for direct peer connections, even in Station mode. Search the community for 'direct routing' and you'll find the odd comment from Sonos staff such as this one. There are related patents such as this one.

I've measured the data flows, so can confirm that it does what it says on the tin.

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