Your device requires a Thread border router

[Tony]

I am developing a Matter device using the nRF 5340 DK. I had this working and for some reason it isn't anymore. I am using the unmodified light_bulb example from the Nordic SDK. I built and ran it on my 5340 DK.

I have a Smartthings hub that is already connected and working with my Android phone and the Smartthings mobile app.

I get a notification on the phone that there is a new device. I assume that is because it is advertising.

I have the QR code in a browser window from the URL in the debug output.

When I scan it it takes a few seconds to connect and then gives an error:

"Your device requires a Thread border router"

I don't understand. The Smartthings hub is a thread border router and it all configured and ready.

Please help.

[Marte Myrvold]

Hi,

Which Smartthings hub are you using?

Have you tried the following guide  Matter: Testing the nRF Connect platform with Apple, Google and Samsung ecosystems ? It explains how to commission Matter devices to commercial ecosystems such as Samsung.

Best regards,
Marte

[Tony]

I have this Smartthings Hub:

https://www.amazon.com/gp/product/B07FJGGWJL/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

I have tried the methods in that article.

Like I said in the original post of the issue, this used to work just last month. I am getting back to working on it.

I have no idea what might have changed. I am building the exact same code that worked before without changes that I know of.

[Marte Myrvold]

Hi,

Have you removed the device from the hub or tried factory resetting the hub?

Please upload the complete log from the device.

Best regards,
Marte

[Tony]

Sorry I wasn't clear in my original post.

I did have this all working before, but started over.

The first thing I did was factory reset the Smartthings hub. I had also removed it from my Samsung account and phone. Basically starting from scratch on everything.

I totally erased the Nordic DK and built and flashed the light_bulb example without changes.

This is the state I am in now.

What logs to you want?

[Marte Myrvold]

Hi,

Thank you for clarifying.

Tony said:

What logs to you want?

The complete application log from the nRF5340 DK when you try to commission it to the Matter fabric.

Best regards,
Marte