https://devzone.nordicsemi.com/f/nordic-q-a/38510/big-data-transmit-and-switch-mac-addressHi, I have some question need your help. I use SDK 14.0.0, S132 and peripheral code. and then I define two peripherals of function in the nrf52. Q1: My product needs bonding with two mobiles because I need two mobiles could control our product aten-USTelligent Community 13Fri, 14 Sep 2018 11:55:04 GMThttps://devzone.nordicsemi.com/thread/148806?ContentTypeID=1Fri, 14 Sep 2018 11:55:04 GMT137ad170-7792-4731-bb38-c0d22fbe4515:8ba00366-2f87-4600-88b0-d0c616edc5e4MartinBL<p>Hi,</p> <p>Q1) It sounds like the easiest fix would be to change your app to not connect multiple times to the same device?</p> <p>Q2) <a href="https://devzone.nordicsemi.com/f/nordic-q-a/17860/nrf52832-sdk12-1-extended-mtu-with-and-without-dle">Here</a> is good explanation of the difference between DLE and MTU. The <a href="https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v15.2.0/ble_sdk_app_att_mtu.html?cp=4_0_0_4_1_1_0">Throughput example</a>&nbsp;allows you to play around with DLE and MTU and shows you the effect.&nbsp;</p><div style="clear:both;"></div>