https://devzone.nordicsemi.com/f/nordic-q-a/117468/ble-connection-issue-immediate-disconnection-between-pc-and-nrf5340-dkHi, I am encountering an issue with the BLE connection on my nRF5340 DK. When I attempt to connect the device to my PC, the pairing process takes a significant amount of time. Additionally, even after pairing is successful, the connection disconnectsen-USTelligent Community 13Fri, 20 Dec 2024 14:19:24 GMThttps://devzone.nordicsemi.com/thread/515943?ContentTypeID=1Fri, 20 Dec 2024 14:19:24 GMT137ad170-7792-4731-bb38-c0d22fbe4515:bb823256-c4b8-4ee3-93f4-0064290417faEinar Thorsrud<p>Hi,</p> <p>I see that there is a non-empty packet sent from the master before the peripheral start advertising again. This is encrypted so I cannot se the content, but I assuem that is a disconnect packet. As the link is encrypted with LESC the sniffer cannot decode it unless you provide the LTK, so you would either have to do that (see <a href="https://devzone.nordicsemi.com/support-private/support/338017/CONFIG_BT_LOG_SNIFFER_INFO">CONFIG_BT_LOG_SNIFFER_INFO</a>). Alternatively, you can check and possibly add logging in your application to see what the disconnect reaon is. That said, based on what we know so far it seems that the central (PC in this case) decided to disconnect for some reason.</p><div style="clear:both;"></div>