https://devzone.nordicsemi.com/f/nordic-q-a/83184/issue-running-throughput-sample-on-nrf5340dkHi, I am using two nRF5340DKs and trying to run the BLE throughput sample. After pristine build, flashing both boards and putting one into peripheral mode and one into central, I run the test with default configuration. However, the throughput is extremelyen-USTelligent Community 13Wed, 29 Dec 2021 15:54:28 GMThttps://devzone.nordicsemi.com/thread/345397?ContentTypeID=1Wed, 29 Dec 2021 15:54:28 GMT137ad170-7792-4731-bb38-c0d22fbe4515:fb0af448-1881-48bb-a916-f75515817dcfPriyanka<p>Hi Jason,</p> <p>I think this may have something to do with the nrf5340DK dual cores. Since it has the <a href="http://developer.nordicsemi.com/nRF_Connect_SDK/doc/1.8.0/nrf/samples/bluetooth/throughput/README.html#:~:text=If%20you%20use%20nRF5340%20DK%2C%20the%20additional%20configuration%20of%20the%20network%20core%20will%20be%20taken%20from%20the%20child_image%20directory.%20For%20more%20details%20see%3A%20Image%2Dspecific%20variables.">network core and application core</a>, maybe when you re-flash , it is not necessary that the network core does not do this. So it would be great if you could check if your child image (hci_rpmsg) is configured with the BLE supports,&nbsp;</p> <p>If you have a problem even then, could you share a sniffer trace so that we can look into this?</p> <p>Regards,</p> <p>Priyanka</p><div style="clear:both;"></div>