https://devzone.nordicsemi.com/f/nordic-q-a/20557/sdk13-0-with-20-connectionsHi, I have found that the sdk13.0 is support 20 current connections , I test it by using example /SDK13.0/example/ble_central/ble_app_multilink_central , I change the central role count over to 8,but whatever I adjust the Ram setting , the sd_ble_enableen-USTelligent Community 13Mon, 20 Mar 2017 08:00:37 GMThttps://devzone.nordicsemi.com/thread/80146?ContentTypeID=1Mon, 20 Mar 2017 08:00:37 GMT137ad170-7792-4731-bb38-c0d22fbe4515:ebc338ac-0180-4916-bf4e-621a0bdb6933lemon<p>I missed the total count paramer,it is ok now,thank you !</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/80145?ContentTypeID=1Sat, 18 Mar 2017 01:36:44 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a1c896f0-2c79-410f-8c9c-13f91b4c8c27lemon<p>I have already try to increase the connection interval to 100ms-300ms,but it doesn&#39;t work. In sdk12.2,I can connect 8 peripheral,but with sdk13.0,it only can connect 7peripheral,when you set the count to 8 or more,it will be wrong in sd_ble_enable() and come a system reset.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/80144?ContentTypeID=1Fri, 17 Mar 2017 14:24:35 GMT137ad170-7792-4731-bb38-c0d22fbe4515:d53fa1c7-4182-4bad-a993-c7de377de1e2FormerMember<p>Could you try to increase the connection interval, and check if that changes anything? You could for example test with a connection interval in the range 100ms to 200 ms.</p><div style="clear:both;"></div>