Hi,

I use and enjoy my ISY devices every day. I have a Polisy Pro running 6.04 with the internal zwave/zigbee matter dongle.

Background:

I am looking to replace a couple of aging Remotelinc 2s. IKEA is now selling a matter capable Bilresa two button switch for $6. I got a couple and I think they are nice.

I have a matter network with thread over wifi running in my house with Home Assistant. The Bilresa switches pair/add to matter OK on Home Assistant.

I have Zwave and Zigbee devices paired with my Polisy. I have never tried to use matter on my Polisy; no devices added.

I understand that to add an already paired matter device to an additional matter "server" is not just scanning the original QR code but requires getting a new pairing code for the matter device from the first/existing matter "server".

I am unable to get my Polisy to pair with the Bilresa switch. I have tried several ways.

Open Home assistant, ask to share Bilresa, get pairing code. Open UD mobile, verify Matter is enabled. Ask UD mobile to add new (this would be first matter device on Polisy) matter device. UD Mobile asks for pairing code - I enter the sharing/pairing code from home assistant. After several minutes the request times out. Bilresa not added. I have tried adding Bilresa using both UD mobile on android Pixel phone and on iOS iPad. Bilresa does not add. Tried with Bilresa within inches of Polisy. No Bilresqa added.

At a different location I have successfully added/shared a different matter Bilresa to two matter "servers" ((Nest hub and Home Assistant) on the same network. Bilresa is seen and works with both matter "servers."

Is Matter really running on my Polisy? What other ways should I try adding/sharing Bilresa to my Polisy?

Any suggestions?

Thank you for you advice.

Edited February 10Feb 10 by whywork

On 2/10/2026 at 10:40 AM, whywork said:

I have a matter network with thread over wifi running in my house with Home Assistant.

That's one thing you need to be careful about: the actual terms. Thread doesn't run over wifi, it runs over zigbee. Home Assistant is purely software. If it's interacting with the Ikea switch ok, then it's talking to it though something. You would need to tell us what that is. If it's a regular IP network connection (wifi or ethernet) then you must have a border router in your setup. If not, do you have a zigbee device that Home Assistant is going through? If you do have a border router, then you should be able to add it to your Polisy with a share code as you described. On the other hand, if Home Assistant is using a zigbee interface of some kind, then this won't work as things currently stand.

Despite it's name, the ZMatter board isn't yet involved with supporting Matter. The Matter functionality of a Polisy or eisy is currently by the IP network connection only. The ZMatter board is a zwave/zigbee board, but UDI doesn't yet support sending Matter commands over the zigbee interface. Until they do, the way to do this is by having a border router in your setup that will bridge the IP/zigbee networks.