https://devzone.nordicsemi.com/f/nordic-q-a/28231/unable-to-ping-thread-deviceHello, I have the following setup: A Raspberry Pi 3 B and a nRF52840 Development Kit acting as a Border Router as described here Another nRF52840 Development Kit flashed with the OpenThread CLI example as described here I have an etherneten-USTelligent Community 13Mon, 11 Dec 2017 11:50:45 GMThttps://devzone.nordicsemi.com/thread/111494?ContentTypeID=1Mon, 11 Dec 2017 11:50:45 GMT137ad170-7792-4731-bb38-c0d22fbe4515:6025a048-a3bf-4e53-9276-53641f255d64J&#248;rgen Holmefjord<p>Do you have IPv6 connection between the RPi and the Mac, and is the Mac setup with IPv6 configuration? Are you able to ping the Thread device from the RPi, and can you ping the Mac from the RPi? Could you post the output of all the ping experiments you did?</p><div style="clear:both;"></div>