question about scanning in ble_app_hrs_rscs_relay which is always disconnected with heart rate monitor?https://devzone.nordicsemi.com/f/nordic-q-a/18981/question-about-scanning-in-ble_app_hrs_rscs_relay-which-is-always-disconnected-with-heart-rate-monitorWhen i use ble_app_hrs to connect with hrs demo(ble_app_hrs example), everything is ok.But when i connect to a heart rate monitor, it always disconnect.The print information is: [DM]: Disconnect Reason 0x0008 [DM]: --&gt; device_context_store [DMen-USTelligent Community 13Tue, 17 Jan 2017 11:02:44 GMTRE: question about scanning in ble_app_hrs_rscs_relay which is always disconnected with heart rate monitor?https://devzone.nordicsemi.com/thread/73365?ContentTypeID=1Tue, 17 Jan 2017 11:02:44 GMT137ad170-7792-4731-bb38-c0d22fbe4515:16431e1d-d6ea-4c82-b7c8-ac77309f8e23quentin<p>The problem is solved.It has been discovered that there is a bug in and older TI CC254x stack that causes parameter update to fail if the window offset is = 0 (as it is in the Nordic stack). &quot;sd_ble_opt_set&quot; change the mode to BLE_GAP_OPT_COMPAT_MODE can solve it.</p><div style="clear:both;"></div>RE: question about scanning in ble_app_hrs_rscs_relay which is always disconnected with heart rate monitor?https://devzone.nordicsemi.com/thread/73364?ContentTypeID=1Mon, 16 Jan 2017 01:46:48 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a742de1f-9752-42db-aa4c-ccfb407e2c31quentin<p>When i change to another heart rate monitor, the data is ok and never disconnect. But the two hear rate monitor can connect to iphone 6. What is the different? Is there any compatibility issues?</p><div style="clear:both;"></div>RE: question about scanning in ble_app_hrs_rscs_relay which is always disconnected with heart rate monitor?https://devzone.nordicsemi.com/thread/73363?ContentTypeID=1Sat, 14 Jan 2017 07:13:28 GMT137ad170-7792-4731-bb38-c0d22fbe4515:ce148a6d-6892-42c9-bd60-8aca6ea2b4d7quentin<p>thank you for your reply. I use sniff to get some information.But didn&#39;t have any ideal.</p><div style="clear:both;"></div>RE: question about scanning in ble_app_hrs_rscs_relay which is always disconnected with heart rate monitor?https://devzone.nordicsemi.com/thread/73362?ContentTypeID=1Fri, 13 Jan 2017 12:18:33 GMT137ad170-7792-4731-bb38-c0d22fbe4515:9f0a2986-a0a4-4993-8656-0fc4cd23a2abPetter Myhre<p>0x08 is BLE_HCI_CONNECTION_TIMEOUT, which probably means that the heart rate monitor stops responding to the packets from the central device. It is difficult say why. A sniffer trace might shed some light on why though. Are you able to sniff?</p><div style="clear:both;"></div>RE: question about scanning in ble_app_hrs_rscs_relay which is always disconnected with heart rate monitor?https://devzone.nordicsemi.com/thread/73361?ContentTypeID=1Fri, 13 Jan 2017 11:44:54 GMT137ad170-7792-4731-bb38-c0d22fbe4515:ef269f25-d6a9-4ae3-bbb5-f718a8fc7d8equentin<p>the sdk version is nRF51_SDK_10.0.0_dc26b5e. I use the demo with keilMDK4.60</p><div style="clear:both;"></div>