Can not add IKEA Matter devices to Thread Network; Doesnt seem to reach my HA server (on RPI_5)

[river latch]

Hi experts,

I am struggling.. came to this point where I have a ZBT-2 set-up with OpenThread RPC firmware up and running.
The Matter Server/Thread Integration/OpenThread Border Router is also set-up and running.

However, when I try to add any Matter device (tried IKEAs MYGGSPRAY and BILRESA), nothing is happening before it times out with the error message "Home couldnt establish a connection to the device". (see screenshots)

When I check the protocolls on HA of the Matter Server or the Border Router Addon, I dont see any reaction or ping-pong indicating any incoming connection.

• everything is up to date
• Matter node device is in pairing mode
• Thread Credentials are sent and synced to my HA Companion App on my iphone12
• IPv6 protocoll is enabled on my fritz.box, iphone and my rPI

I exhausted my options.. went through entire documentation, set-up guides and troubleshooting pointers.
Any info is greatly appreciated

Cheers,
thomas

[timber pine]

two QQ, can your phone see the network? https://play.google.com/store/apps/details?id=com.mdns_discovery.app is a usable app
(if not, that is the troubleshooting step)
Is the credentials really refreshed in the keychain?
Worse god damn case - The IKEA devices support MQTT (Woh) https://www.reddit.com/r/homeassistant/comments/1pzvysh/new_ikea_matter_over_thread_devices_might/

[timber pine]

(I had similar problem that made me use a whole new phone to connect them)

[river latch]

Holy Maceroni... tried with my Wifes iPhone16 because of what you said and it bloody worked. Flawlessly and without and hiccups or special vodoo. Same steps taken, just a different device.

thanks though for the additional avenue of troubleshooting. will keep that in mind for when I find the motivation to dig deeper on whats actually borken with pairing with my iphone12

thx @timber pine

[timber pine]

happy to help!