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Arc 5Ghz surround channel no user selection.

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Hi there,

I couldn’t find a fitted answer, but why is the sonos arc copying my 5ghz channel with the same as my router and why isnt it selectable for the user to reduce traffic interference?

I changed my router a few times but the arc moves with the same channel all the time.

I know a lot of people who have there router neer the tv and soundbar so know you cross the signals within 2 meters, with that great bandwidth there is a wide choice to pick a other channel.

thanks in advance.

greets.

thomas

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ThomasvanammersAnswer

Trending Lyricist I

Is there a way in your scanner @Thomasvanammers to show the BSSID of the signal you’re seeing within the display - my thoughts are that the signal you’re seeing in the scanner is too wide (80MHz) for it to be a Sonos ad-hoc wireless signal - they’re apparently only 20Mhz only as far as I can tell. So might you have a guest WiFi enabled on your router perhaps, or is there another WiFi router, or WiFi access point nearby?

Well that could be it, there used to be a ziggo guest network call wifi spots, everybody with the isp app can use your wifi, but i deactivated it because i wouldnt use it. It used to be a WiFi system mabey now its a cloacked system?

Since you noticed the 80mhz it most be that system.

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ThomasvanammersAuthor

Trending Lyricist I

FWIW in my own case, I run a Sonos setup on my local WiFi (no wired SonosNet connection) and have the Sonos Arc bonded with two Era-300’s and a Sub.

The Arc called ‘Living Room’ only ever connects to the LAN using its 2.4ghz adapter and is currently using the routers channel 11 for its connection.

The bonded surrounds are using an Ad-hoc wireless connection, which is auto-selected by the Arc and shown as being on Channel 36 - this can and does vary, particularly if I reboot the Arc/surrounds.

The local WiFi 5Ghz channel on the router is set as Channel 44

See attached …

Yeah i see but it might be tested by the equipment the range for 5ghz must be within 10 meters for best performance if else it will switch automatic to 2.4ghz i just read that when you name your ssid 5ghz a other name and you put that ssid in the sonos app it will use the 5ghz without putting it back to 2.4ghz

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Ken_Griffiths

Yeah i see but it might be tested by the equipment the range for 5ghz must be within 10 meters for best performance if else it will switch automatic to 2.4ghz i just read that when you name your ssid 5ghz a other name and you put that ssid in the sonos app it will use the 5ghz without putting it back to 2.4ghz

My router has a ‘bridged’ WiFi mesh setup and the Horizon access point is very close to the Arc.. one metre away and the signal strength is shown as SNR 89dB within the Sonos App (screenshot attached).

The 2.4Ghz and 5Ghz SSID’s are named the same in the ‘smart’ WiFi setup and band steering is automatic.

I’ve never seen any Sonos Home Theatre product, Ray, Beam, Arc, Amp ‘ever’ use a 5Ghz WiFi connection.. it’s always 2.4Ghz only and their 5Ghz adapters are used only for an Ad-hoc WiFi connection to the surrounds/sub for timely TV audio communication.

In your setup @Thomasvanammers, the Arc is shown as using centre channel frequency 2437 (channel 6) but the router main channel is shown as 11, (central frequency 2462)… do you need to set its channel-width to 20Mhz only, perhaps?

The ad-hoc centre wireless frequency in your case is 5220 (channel 44).

So I’m just wondering what your router/WiFi network setup is in your case?.. is there just one central router. Oh and why can’t you fix the 5Ghz (and 2.4Ghz) channels on that router🤔? Once fixed it should stay fixed?

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Ken_Griffiths

Is there a way in your scanner @Thomasvanammers to show the BSSID of the signal you’re seeing within the display - my thoughts are that the signal you’re seeing in the scanner is too wide (80MHz) for it to be a Sonos ad-hoc wireless signal - they’re apparently only 20Mhz only as far as I can tell. So might you have a guest WiFi enabled on your router perhaps, or is there another WiFi router, or WiFi access point nearby?

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Stanley_4

Grand Maestro

I installed that app and while it shows hidden SSID signals it did not show any of my Sonos devices signals, either on 2.4 or 5 GHz. Neither SonosNet or the Surround Wireless showed.

You can slide to the details tab on the app and check the signals you think are yours by comparing the MAC address the app shows and your Sonos MAC addresses under System, About My System on your controller.

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ThomasvanammersAuthorAnswer

Trending Lyricist I

Is there a way in your scanner @Thomasvanammers to show the BSSID of the signal you’re seeing within the display - my thoughts are that the signal you’re seeing in the scanner is too wide (80MHz) for it to be a Sonos ad-hoc wireless signal - they’re apparently only 20Mhz only as far as I can tell. So might you have a guest WiFi enabled on your router perhaps, or is there another WiFi router, or WiFi access point nearby?

Well that could be it, there used to be a ziggo guest network call wifi spots, everybody with the isp app can use your wifi, but i deactivated it because i wouldnt use it. It used to be a WiFi system mabey now its a cloacked system?

Since you noticed the 80mhz it most be that system.

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ThomasvanammersAuthor

Trending Lyricist I

I installed that app and while it shows hidden SSID signals it did not show any of my Sonos devices signals, either on 2.4 or 5 GHz. Neither SonosNet or the Surround Wireless showed.

You can slide to the details tab on the app and check the signals you think are yours by comparing the MAC address the app shows and your Sonos MAC addresses under System, About My System on your controller.

I watched the mac adres and it is a strange number not the same as my wifi router i cant see it anywhere in sonos list could my router sent two 5ghz mac adresses? I have to look up the power adapters of the wifi pods i have, but they use 2.4ghz and other channels. Strange. I have some 10 wifi light bulbs around but only receiving not sending.

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Ken_Griffiths

My thoughts now, are that the router is perhaps broadcasting a hidden (ghost) SSID, as part of a mesh backbone for use with compatible access points, aswell as broadcasting a visible SSID🤔? See this discussion on mesh systems with hidden backbone…

https://superuser.com/questions/1720099/why-does-my-router-broadcast-a-ghost-ssid-at-the-same-frequencies-and-strength-w

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ThomasvanammersAuthor

Trending Lyricist I

My thoughts now, are that the router is perhaps broadcasting a hidden (ghost) SSID, as part of a mesh backbone for use with compatible access points, aswell as broadcasting a visible SSID🤔? See this discussion on mesh systems with hidden backbone…

https://superuser.com/questions/1720099/why-does-my-router-broadcast-a-ghost-ssid-at-the-same-frequencies-and-strength-w

I think ots the wifi sniffer in the router oh i laughed so hard, some things can put you on the wrong track for some time.

Il put up a sreen its says in this part of the router. Thats why it only codes up every few minutes.

The dumb thing is the system doesnt even work on 5ghz because the channels are locked because of the radar laws in netherlands.

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ThomasvanammersAuthor

Trending Lyricist I

Its the channal optimalisation.

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ThomasvanammersAuthor

Trending Lyricist I

I installed that app and while it shows hidden SSID signals it did not show any of my Sonos devices signals, either on 2.4 or 5 GHz. Neither SonosNet or the Surround Wireless showed.

You can slide to the details tab on the app and check the signals you think are yours by comparing the MAC address the app shows and your Sonos MAC addresses under System, About My System on your controller.

I watched the mac adres and it is a strange number not the same as my wifi router i cant see it anywhere in sonos list could my router sent two 5ghz mac adresses? I have to look up the power adapters of the wifi pods i have, but they use 2.4ghz and other channels. Strange. I have some 10 wifi light bulbs around but only receiving not sending.

@Stanley_4 @Ken_Griffiths thanks for the help and Support.

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