Arc Ultra Surrounds Disconnect Daily After Extended TV Off Period

I would suggest disabling UPnP on the router (a potential security risk), this will not affect UPnP on the LAN.

Agree. Different models will have different chipsets with different firmware. I would report to Asus, if you can consistently reproduce. The AiProtection does have different features that can be individually enabled/disabled and possibly configured? Ideally you want to be able to exclude/whitelist your Sonos devices. 

I spoke too soon. The issue reappeared after about 12 hours. I’m again seeing repeated deauth/auth/assoc log messages after the Sonos Arc Ultra goes idle.

This is occurring even with default router settings and AiProtection disabled.

I’ve contacted ASUS support and they said they will follow up in a couple of days.

I’m still waiting to hear back from ASUS, but I’ve done some additional testing and think I have a better understanding of what’s happening.

To clarify, my network works fine with Sonos speakers individually. The issue only occurs with the surrounds (Ones) and their connection to the Sonos Arc Ultra (private 5 GHz link).

When the Arc Ultra goes idle, there appears to be a brief window where the surrounds show up on the network again (visible in the client list), which may be by design. They will sometimes reconnect back to the Arc Ultra without issue, but other times they fully associate with the router.

When that happens, the surrounds get stuck in a loop:

• Deauth when attempting to connect to the Arc Ultra
• Auth/Assoc when reconnecting to the network

These events repeat until the Arc Ultra is power cycled.

This also explains the inconsistent behavior. If the surrounds reconnect to the Arc Ultra quickly, everything works normally. If they fully associate with the router first, the loop begins.

My current theory is that this is a timing issue during the transition between the Arc Ultra’s private 5 GHz link and the router WiFi connection.

The odd thing is that this doesn’t seem to be happening to anyone else. I’d think if it was, there would be at least dozens of people clambering about a similar issue. But it only seems to be occurring to you. 

Most odd.

​@Airgetlam I’m not sure that’s entirely the case. There do seem to be a number of reports of surrounds disconnecting or not reconnecting, although they may not all be describing it the same way. It’s possible this is specific to my router model or firmware.

​@ScottDDev 

There are questions I have yet to get answered. If you did and I missed your reply … my apologies.

Questions:

Do you have different SSID’s for your 2.4Ghz and 5Ghz bands?

Do you have a Guest Network active?