I bought a ZBT-2 10 days ago, and a bunch of 2-button Ikea Bilresa. At first, I ran the ZBT-2 with Zigbee firmware. I had many issues with the network dying when buttons were moved of range of the ZBT-2. Many blueprints for the Bilresa were written for the Matter version of the device, also.
So, I figured I would try the Matter firmware for the ZBT-2.
At first, I got the cryptic error on my phone that “Your device requires a thread border router”. After a few hours, I figured out I needed to “Sync credentials” in the companion app. That got me past this error.
Now, I’m facing another problem :
“Can’t connect to thread network ha-thread-2c08”.
This is happening using the HA companion app on my Galaxy S24 Ultra.
HAOS is running in a Proxmox VM.
Router is pfSense, another Proxmox VM.
Wifi APs are Unifi.
IPv6 is enabled in HAOS. pfSense provides DHCP6. ISP also delegates IPv6, even though I understand that’s not required for Matter/Thread.
There are no VLANs - everything is on VLAN 1.
The Bilresa are the only Matter/Thread devices I own. I don’t have another phone to try.