Unable to add Siegenia window sensor to HomeAssistant by Matter about core

[home-assistant]

Hey there @home-assistant/matter, mind taking a look at this issue as it has been labeled with an integration (matter) you are listed as a code owner for? Thanks!

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[agners]

Hm, it seems that late during the commissioning the device sens an error back to our Matter controller, which causes the device to drop.

The whole commissioning flow is pretty much straight from the official Matter SDK, so it is a bit surprising that this does not affect Apple 🤔

Did you commission it first with Apple and then with HA?

Did you try factory reset and do the opposite: Pair first with HA (and then with Apple?).

[matthias987654]

Yes - first Apple Home and then HomeAssistant. I didn't test it the other way around.

[lboue]

@matthias987654 Did you try to factory reset the device and give a another try?

[matthias987654]

Yes, same error after that. I am able to add the device as new device. But there is no possibility to add a second platform like Apple Home.

[lboue]

Yes, same error after that. I am able to add the device as new device. But there is no possibility to add a second platform like Apple Home.

You could use the 'Share device' function for that. If it doesn't work, it's due to a limit on the number of Matter fabric on the device.

[matthias987654]

I used that. But it ends with an error during the enrollment on Apple Home, too.

[lboue]

I used that. But it ends with an error during the enrollment on Apple Home, too.

So it's an device issue.