https://devzone.nordicsemi.com/f/nordic-q-a/29818/the-conneted-slave-disconnects-after-some-seconds-after-connection-with-the-reason-8-connection-timoutHi averyone, We are developing the BLE project whith two devices master/slave. The master device is built on the NRF52832 processor with SDK14.1 and it&#39;s program is built is the modified example &quot;ble_app_hrs_rscs_relay&quot; that has the two roles &quot;Centralen-USTelligent Community 13Wed, 31 Jan 2018 12:28:05 GMThttps://devzone.nordicsemi.com/thread/118424?ContentTypeID=1Wed, 31 Jan 2018 12:28:05 GMT137ad170-7792-4731-bb38-c0d22fbe4515:2d671a0a-4cf6-4712-a627-defeae5b275eendnode<p>Same question, same answer: you need to provide all the details and if you encounter any timeout on BLE LL then you should get the trace on that layer (with BLE sniffer or some more expensive network analyzer).</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/118425?ContentTypeID=1Wed, 31 Jan 2018 11:45:18 GMT137ad170-7792-4731-bb38-c0d22fbe4515:5517791a-a580-48de-bd76-a82e9bd976a4strengthstrong<p>I also encountered the same problem, you solved it, I need help</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/118423?ContentTypeID=1Wed, 27 Dec 2017 14:01:58 GMT137ad170-7792-4731-bb38-c0d22fbe4515:579c9598-b9b2-4778-9344-1dc2ce9decadDavid Edwin<p>Can you post the softdevice used and their versions ?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/118422?ContentTypeID=1Sun, 24 Dec 2017 12:41:21 GMT137ad170-7792-4731-bb38-c0d22fbe4515:9052bf0b-1a9f-4f21-b62e-31f18f1d2929endnode<p>It looks like your connection time-outed on Link Layer meaning one of the peers stopped sending PDUs and respond to connection events. You probably want to get log from some radio analyzer or BLE sniffer to see what is exactly happening in the air.</p><div style="clear:both;"></div>