https://devzone.nordicsemi.com/f/nordic-q-a/48247/le-secure-connections-lesc-in-multi-roleI have a question about LE Secure Connections (LESC). As an example, consider the following behavior. 1. &quot;Device A&quot; scans as &quot;Central&quot;. 2. &quot;Device B&quot; advertises as &quot;Peripheral&quot;. 3. Pairing with &quot;LESC&quot; between both devices. 4. Disconnect between bothen-USTelligent Community 13Fri, 07 Jun 2019 07:16:58 GMThttps://devzone.nordicsemi.com/thread/191509?ContentTypeID=1Fri, 07 Jun 2019 07:16:58 GMT137ad170-7792-4731-bb38-c0d22fbe4515:74372ac1-08e6-46bd-a5da-6ca0be30e0a5ovrebekk<p>Hi</p> <p>Yes. When you pair two BLE devices the pairing is only valid for the devices that did the pairing in the first place, and the peripheral/central relationship can not be exchanged.&nbsp;</p> <p>If you want to change from peripheral to central or vice versa you will have to pair again.&nbsp;</p> <p>Best regards<br />Torbjørn</p><div style="clear:both;"></div>