https://devzone.nordicsemi.com/f/nordic-q-a/70829/ble---connection-terminated-by-local-hostHi, I&#39;m using nrf52840 device in order to connect a mobile via BLE. After pairing and a couple of minutes - I get a discinnection with reason code BLE_HCI_LOCAL_HOST_TERMINATED_CONNECTION. I would like to ask - who is local host? Thanksen-USTelligent Community 13Mon, 25 Jan 2021 14:45:32 GMThttps://devzone.nordicsemi.com/thread/291076?ContentTypeID=1Mon, 25 Jan 2021 14:45:32 GMT137ad170-7792-4731-bb38-c0d22fbe4515:bb523c4e-f91f-4c49-a6a1-b53202b2ca6fHung Bui<p>Hi Roei,&nbsp;<br />By definition in the spec the application should receive disconnect reason when it&#39;s requested by the application (local) to disconnect or it&#39;s an timeout of a procedure that initiated by the local device.&nbsp;</p> <p>It&#39;s explained in <a href="https://devzone.nordicsemi.com/f/nordic-q-a/67677/ble_hci_local_host_terminated_connection-disconnection-reason">this case.</a>&nbsp;</p> <p>I would suggest to capture a <a href="https://www.nordicsemi.com/Software-and-tools/Development-Tools/nRF-Sniffer-for-Bluetooth-LE">sniffer trace </a>when the disconnect occured, so we would have a better insight of what caused the disconnection.&nbsp;</p><div style="clear:both;"></div>