Hello Everyone. I tried to run the ble_app_multirole_lesc example on SDK 16.0.0 to test the numeric comparison match feature on bonding. And found that the handling of this feature shall follow the same sequence diagram illustrated in this link: infocenter.nordicsemi.com/index.jsp I noticed that the SMP Pairing Failed message is not sent from the peripheral to central if we rejected the pairing from the peripheral device only and no action is taken from the central side. Attached our sniffing sessions.