https://devzone.nordicsemi.com/f/nordic-q-a/95428/how-to-stop-advertising-and-go-into-a-non-connectable-stateI want to stop advertising and be in a non-connectable state, if someone connected sends the wrong data through a characteristic three times in a row. I will start a timer, and after x amount of seconds, start advertising again for people to connect.en-USTelligent Community 13Fri, 06 Jan 2023 13:48:35 GMThttps://devzone.nordicsemi.com/thread/403603?ContentTypeID=1Fri, 06 Jan 2023 13:48:35 GMT137ad170-7792-4731-bb38-c0d22fbe4515:ff741e5d-285d-4394-909a-115c56b6db2aHung Bui<p>Hi Jerome,&nbsp;</p> <p>We would need to have a look on how you start advertising. Did you use ble_advertising module ? Or you use the sd_ble_gap_adv directly ?&nbsp;<br />If you use ble_advertising, you can change&nbsp;ble_adv_on_disconnect_disabled configuration in&nbsp;init.config when you setting up advertising in&nbsp;advertising_init().&nbsp;</p> <p>If you use the softdevice API directly you need to check you code when you handle the&nbsp;BLE_GAP_EVT_DISCONNECTED event, usually in ble_evt_handler() . Most likely the start of new advertising after disconnected is located there.&nbsp;&nbsp;</p> <p>Calling&nbsp;sd_ble_gap_adv_stop() right after&nbsp;sd_ble_gap_disconnect() doesn&#39;t work because at that moment the link is not actually disconnected yet. Advertising will restarted when&nbsp;BLE_GAP_EVT_DISCONNECTED&nbsp;event is triggered<strong><span>.&nbsp;</span></strong></p><div style="clear:both;"></div>