MQTT-SN over Thread

[kalpino]

Hello, 

I have been using Nordic mqttsn examples (publisher/subscriber) along with an OperThread Border Router. So far I haven't changed the parameters of the Thread Network and everything has been working fine.

I have now created a new Thread network from the Border Router web interface (the one reachable through the Border Router IP address): the commissioning procedure to allow a new device to enter the newly formed network works fine but the device is not able to find a mqtt gateway anymore.

I wonder if I am missing any modifications due to the new Thread Network: all that I have done is to set new parameters (i.e. PAN ID, Network key, name, ...) on the web interface.

Thanks for the support.

[Edvin]

Hello,

I have now created a new Thread network from the Border Router web interface

What does this mean? What Border Router web interface do you refer to?

What sort of device is the mqtt gateway? is that a Nordic Device? What state is it in? Is it looking for a network? Did it form it's own network? 

Best regards,

Edvin

[kalpino]

I solved the problem doing what is suggested in this othe post: 

https://devzone.nordicsemi.com/f/nordic-q-a/37172/unable-to-get-nrf52840-thread-mqtt-sn-example-working---mqttsn_search_gateway_no_gateway_found

By changing the GatewayUDP6Broadcast to ff03::1 the node is able to connect to the gateway as usual. I still do not understand why this happens though.