Cannot add Matter devices, although OTBR is up and running

Configuration Matter/Thread
,
1

Hello!
I am desperately trying to setup my OTBR in Home Assistant with my Sonoff Dongle Max.
I flashed the dongle for Thread RCP Mode and it is running in this mode. It is also connected to my LAN (Wifi for testing).

I have configured the OTBR using the following YAML code:

device: >-
/dev/serial/by-id/usb-SONOFF_SONOFF_Dongle_Max_MG24_fe650a656dfaef11bd2995256d9880ab-if00-port0
baudrate: “460800”
flow_control: false
otbr_log_level: error
firewall: true
nat64: true
network_device: Dongle-M.local:6638

I have enabled ipv6 in my network and HA has automatically received some ipv6 configs.

When I now start the OTBR the logs say:

INFO: Successfully sent discovery information to Home Assistant.

Looks all good so far.

Still, when I am trying to add a new Matter Device (Ikea device) via the companion app, the error occurs, that there is no Thread Border Router in my private network.

I have set the preferred network in the HA Threads configuration, my OTBR is listed there and I have synched the credentials in the companion app.

Any idea what could be my problem, that I am still not able to add a matter device?

Thanks for your help.

Best Regards
Christoph

2

Did you synchronize the Thread credentials?
In HA Android App: Setup → Companion App → Troubleshooting → Sync Thread Credentials

3

yes I did multiple times.

4

I checked my config. I have

baudrate: "460800"
flow_control: false
otbr_log_level: notice
firewall: false
nat64: false
network_device: 192.168.1.79:6638

I have nat64:false Maybe that is the issue?

5

I finally fixed it.
I had all my IoT devices in a vLan and this caused some troubles. Changing this was the solution and now everything is working as expected.

6

hi, I’ve had the same problem, HA-App stating, “that there is no Thread Border Router in my private network.” After @starob comment, I was finally able to pass this step.

But now the App doesnt get over this message “Checking connection to thread network “ha-thread-a123”. After several minutes i get the error” no connection possible, are you connectet to the wifi" (I am connected to the same 2,5 wifi)

Any further suggestions?
thanks!

7

@117agu can you give more details on your setup?

For me disabling the firewall for the pairing process on my device fixed the issue you mentioned. Did you configure the sysctl ipv4 and ipv6 forwarding aswell?