@JackHammer 

The articles I saw describe two problems with WPA3.

1. Unable to connect, used to be able before.

This is obviously not the case here.

2. Connection is glitchy.

Found this: "If you have an Android 11 phone, and have the WPA3 labs setting enabled, you're likely to see problems roaming between nodes. The device will hang on to a far node until it's fully lost, fall back to mobile data, and only then seek a new access point.

This isn't eero specific (I've seen reports with competing mesh products also), but it definitely affected my pixel 3. Disabling WPA3 is a temporary workaround."

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In both cases workaround is to disable WPA3 on WiFi router. As Deco does not support WPA3, consider it disabled in Deco mesh. 

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I absolutely do not dispute that your devices experience issues with your Deco mesh after upgrade to Android 11. The point I am making is you are looking at the wrong cause for the problem.

 

2. Connection is glitchy.

 

Found this: "If you have an Android 11 phone, and have the WPA3 labs setting enabled, you're likely to see problems roaming between nodes. The device will hang on to a far node until it's fully lost, fall back to mobile data, and only then seek a new access point.

 

This isn't eero specific (I've seen reports with competing mesh products also), but it definitely affected my pixel 3. Disabling WPA3 is a temporary workaround."

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In both cases workaround is to disable WPA3 on WiFi router. As Deco does not support WPA3, consider it disabled in Deco mesh. 

 

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I absolutely do not dispute that your devices experience issues with your Deco mesh after upgrade to Android 11. The point I am making is you are looking at the wrong cause for the problem.

 

My Fiber/router doesn't support WPA3 and is just a gateway, so nothing to disable. Devices connect to Mesh. As I said, I assume its a "trust" Certificate issue rather than WPA3 itself. And yes I've seen this issue documented with other Mesh manufacturers too.

With Enterprise systems such as in my office, WPA3 Enterprise had major connection issues with Android 11 and was solved by SysAdmin purchasing and distributing CA certificates. 

I did Test a Pixel 5 on my Mesh, same issue as other Android 11 devices, drops connection, doesn't slide from Node to Node. 

Tested on Neighbors' M9 Plus Mesh, No issues at all with any Android 11 devices. 

Alexandre. wrote

I absolutely do not dispute that your devices experience issues with your Deco mesh after upgrade to Android 11. The point I am making is you are looking at the wrong cause for the problem.

 

Sounds like 'the surgery was successful but the patient died'. 

Anyway thanks for your input.

JH.

@JackHammer 

Hi, Jack,

Thank you very much for the detailed information.

After checking with the senior engineers, we don't think it is related to the CA certificates either.

Neither Deco M9 plus nor Deco M4 is supported WPA3 or WEP. But we are quite concerned about the deep reason for this issue.

Could you please help me check the following details:

1. When the Android 11 devices drop connection, Did it behave quite like what Alex has described:

The device will hang on to a far node until it's fully lost, fall back to mobile data, and only then seek a new access point.

2. Would turning off the fast roaming and beamforming on the Deco APP improve the network stability?

Thank you very much.

TP-Link wrote

@JackHammer 

Hi, Jack,

 

1. When the Android 11 devices drop connection, Did it behave quite like what Alex has described:

The device will hang on to a far node until it's fully lost, fall back to mobile data, and only then seek a new access point.

2. Would turning off the fast roaming and beamforming on the Deco APP improve the network stability?

 

Thank you very much.

@TP-Link 

Thanks for opening a Ticket.

1. Yes, but when connecting again it after "seek another access point" the phones will show a connected Icon, but as soon as I try to surf, no connection and the WiFi Icon on the phone shows an exclamation mark.

2. Will test again over a longer period and get back to you.

Thanks.

J