https://devzone.nordicsemi.com/f/nordic-q-a/125081/help-in-decrypting-ble-packets-using-nrf52840-usb-dongleHello Nordic support, I would like to understand how I can decrypt the packets that is using Legacy passkey pairing. Here is the BLE sniffer log, where I selected Legacy Passkey and provided the key used during pairing process. However, I still do noten-USTelligent Community 13Tue, 21 Oct 2025 07:10:56 GMThttps://devzone.nordicsemi.com/thread/552017?ContentTypeID=1Tue, 21 Oct 2025 07:10:56 GMT137ad170-7792-4731-bb38-c0d22fbe4515:3761de4a-24c8-431c-92f2-03bf9954b21fVidar Berg<p>Hello Anusha,</p> <p>Could you provide some details about your setup and explain why you’re trying to sniff this connection? I assume you’re troubleshooting a specific issue. I reviewed the trace and the sniffer appears to only be receiving every other connection event for some reason. It&#39;s also missing the key exchange so it doesn&#39;t receive the long term encryption key (LTK) needed to decrypt subsequent connections were this key will be used.&nbsp;</p> <p>Best regards,</p> <p>Vidar</p><div style="clear:both;"></div>