https://devzone.nordicsemi.com/f/nordic-q-a/79091/ble-time-outHi I am not busy developing an new product with nRF52840. I want to use the BLE functionality and started with the ble_app_hrs sample application. I download the pca10056 solution and test it on my DevKit start52840dk and use the dongle nRF Connecten-USTelligent Community 13Tue, 31 Aug 2021 11:40:38 GMThttps://devzone.nordicsemi.com/thread/327403?ContentTypeID=1Tue, 31 Aug 2021 11:40:38 GMT137ad170-7792-4731-bb38-c0d22fbe4515:ca8a3bdc-e8ac-4d70-a90c-f0198da3eb8dSigurd<p>Hi,</p> <p>Do you have the log from the nRF52840 as well? You can get the nrf_log from either UART or Segger RTT logger backend.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/327227?ContentTypeID=1Mon, 30 Aug 2021 12:59:57 GMT137ad170-7792-4731-bb38-c0d22fbe4515:2f84338f-c9c5-442c-9498-82e54b8ad429Laurent L<p>I am using SDK17. When using the nRF connect i am getting</p> <div class="core-log-entry core-log-level-info"> <div class="core-log-time">14:57:37.531 Connecting to device</div> </div> <div class="core-log-entry core-log-level-info"> <div class="core-log-time">14:57:37.886&nbsp;Connected to device C4:B4:05:5D:12:6A: interval: 7.5ms, timeout: 4000ms, latency: 0</div> </div> <div class="core-log-entry core-log-level-info"> <div class="core-log-time">14:57:37.946&nbsp;ATT MTU updated for device C4:B4:05:5D:12:6A, new value is 247</div> </div> <div class="core-log-entry core-log-level-info"> <div class="core-log-time">14:57:41.892&nbsp;Disconnected from device C4:B4:05:5D:12:6A, reason: BLE_HCI_CONNECTION_TIMEOUT</div> </div><div style="clear:both;"></div>