Inconsistent connections with Matter

RE: Inconsistent connections with Matter

YunjooKim — Thu, 09 Feb 2023 01:21:24 GMT

Hi Marte,

Thanks for your reply.

[quote userid="92402" url="~/f/nordic-q-a/95775/inconsistent-connections-with-matter/408760"]Which version of iOS and Android do you have on the phones you used for testing? Which versions do you have of the Apple Home app, Apple HomePod Mini, Google Home app, and Google Nest Hub?[/quote]

Here's the information I've tested:

[quote userid="92402" url="~/f/nordic-q-a/95775/inconsistent-connections-with-matter/408760"]Your Google log shows that you have a different issue than I saw when testing. For Google, the fail-safe timer expires, so the commissioning is terminated. Did you create an integration for your device in the Google Developer Center and specify the device's VID and PID?[/quote]

I apologize for bothering you with insufficient information.
I have not registered VID and PID in google developer center.
Since I am not a CSA member yet, it seems difficult to test it right away on google home.

[quote userid="92402" url="~/f/nordic-q-a/95775/inconsistent-connections-with-matter/408760"]I am not able to see why it fails with Apple. The log shows that the device joins the network and is assigned the router role. What does the error on the phone say in English?[/quote]

- Apple :
Cannot add accessories
Accessories cannot be accessed.

- Google:
Something went wrong.
Make sure you are connected to the network and try again.

Best regards,

Yunjoo

RE: Inconsistent connections with Matter

Marte Myrvold — Wed, 08 Feb 2023 08:44:46 GMT

Hi Yunjoo,

Which version of iOS and Android do you have on the phones you used for testing? Which versions do you have of the Apple Home app, Apple HomePod Mini, Google Home app, and Google Nest Hub?

Your Google log shows that you have a different issue than I saw when testing. For Google, the fail-safe timer expires, so the commissioning is terminated. Did you create an integration for your device in the Google Developer Center and specify the device's VID and PID?

I am not able to see why it fails with Apple. The log shows that the device joins the network and is assigned the router role. What does the error on the phone say in English?

Best regards,
Marte

RE: Inconsistent connections with Matter

YunjooKim — Fri, 03 Feb 2023 04:55:15 GMT

Hi Marte and whyeye,

I'm having a similar issue too.

Commissioning fails at Google and Apple.

At Samsung, commissioning is successful. (QR Code and Pin Code)

Tested with NCS v2.2.0 / light_bulb.

If you succeed in commissioning at Google and Apple in the future, could you share your test environment?

It's very useful to me.

Additionally, I attach the log of my testing.

devzone.nordicsemi.com/.../01_5F00_Samsung_5F00_QR_5F00_Code.txt

devzone.nordicsemi.com/.../02_5F00_Apple_5F00_QR_5F00_Code.txt

devzone.nordicsemi.com/.../03_5F00_Google_5F00_QR_5F00_Code.txt

Thanks in advance.

+ I'm sorry.
I found Marte's post belatedly.
I'll check this out.

Matter: Testing the nRF Connect platform with Apple, Google and Samsung ecosystems

Best regards,

Yunjoo

RE: Inconsistent connections with Matter

Marte Myrvold — Wed, 25 Jan 2023 09:32:17 GMT

Hi,

The developers suspect it might be an Android software issue rather than specific phones. I tested with a phone with the same Android version as you, 13. As far as I know, OnePlus does not support Android 13 yet, so that might explain why your colleague was able to get it to work. I will do some more testing and see if I can verify this.

In the meantime, the developers asked if you can try to reinstall the Google Home app and make sure that the cache is clear, as well as factory reset the Google Hub.

Best regards,

Marte

RE: Inconsistent connections with Matter

Marte Myrvold — Tue, 24 Jan 2023 08:40:28 GMT

Hi,

I believe you might be correct. I have asked the development team if they are aware of there being an issue with certain Android devices.

Best regards,

Marte

RE: Inconsistent connections with Matter

whyeye — Mon, 23 Jan 2023 01:06:38 GMT

Thanks, Marte. I have a gut feeling that the Google Home issues might be related to the BLE implementation on specific Android hardware/software combinations. A colleague of mine seems to have much better luck on a One Plus phone, whereas I am running a Google Pixel 4 on Android 13.

RE: Inconsistent connections with Matter

Marte Myrvold — Fri, 20 Jan 2023 14:41:01 GMT

Hi,

[quote user="whyeye"]What's the easiest way to test whether my router supports IPv6?[/quote]

In Windows open command prompt and use the command ipconfig. If you are using Linux, you can use ip a (ip -c a if you want it with colors so it is easier to see). If you have an IPv6 address (not link-local IPv6) under your network adapter then your router supports IPv6.

I did some tests with Google Home today myself, and I was having similar issues as you. Everything was working as it should on the nRF52840 DK's side, which makes me believe that the issue is with the Google Home app/firmware. I will keep testing and looking into this, and I will get back to you.

Best regards,

Marte

RE: Inconsistent connections with Matter

whyeye — Thu, 19 Jan 2023 23:11:31 GMT

Thanks Marte. What's the easiest way to test whether my router supports IPv6? I think the fact that it works sometimes should mean that IPv6 is supported, right? In the logs I see a lot of IPv6 related data.

RE: Inconsistent connections with Matter

Marte Myrvold — Thu, 19 Jan 2023 14:24:08 GMT

Hi,

It seems like the issue for this customer was with the router they were using. Can you verify that your router supports IPv6 and has IPv6 Router Advertisement Guard disabled? Or is it possible to test with another router/and or network?

Best regards,

Marte

RE: Inconsistent connections with Matter

whyeye — Wed, 18 Jan 2023 20:35:47 GMT

Thank you. I have not seen that blog post before so I will take a look to see if we missed anything.

RE: Inconsistent connections with Matter

Marte Myrvold — Wed, 18 Jan 2023 13:20:45 GMT

Hi,

Which version of the SDK are you using? What versions are the Apple Home and Google Home?

Can you please go through our blog post Matter: Testing the nRF Connect platform with Apple, Google and Samsung ecosystems and see that you have performed all the steps there? In addition to the blog post, please make sure that you factory reset the device before testing/commissioning. In the samples this can be done by pressing button 1 for 6 seconds.

I have seen one other customer with some similar issues with Apple and Google, but our development team have not been able to reproduce the issue, and suspect the issue might be with the Apple/Google application or with routing. The developers are currently looking into this, so I will investigate to see if it might be the same issue as you are experiencing and get back to you.

Best regards,

Marte