https://devzone.nordicsemi.com/f/nordic-q-a/92323/turn-off-dtls-in-lwm2m-client-sampleHello there, I am looking for a way to connect to the Eclipse Leshan Server without DTLS using the LwM2M Client sample. However, this does not seem to be so easy. The config contains the option: CONFIG_LWM2M_DTLS_SUPPORT=y . It is not possible toen-USTelligent Community 13Mon, 26 Sep 2022 15:52:37 GMThttps://devzone.nordicsemi.com/thread/387983?ContentTypeID=1Mon, 26 Sep 2022 15:52:37 GMT137ad170-7792-4731-bb38-c0d22fbe4515:d5b4ba3a-a4b4-4bc9-888a-1e43efe183d2Kurt Simon<p>I changed&nbsp;&nbsp;<pre class="ui-code" data-mode="text">have_permanently_stored_keys = false;</pre>&nbsp;to&nbsp;<pre class="ui-code" data-mode="text">#if defined(CONFIG_LWM2M_DTLS_SUPPORT) have_permanently_stored_keys = false; #endif /* CONFIG_LWM2M_DTLS_SUPPORT */</pre>&nbsp;in lwm2m_init_security()</p> <p>dir: sdk-nrf/subsys/net/lib/lwm2m_client_utils/lwm2m/lwm2m_security.c</p> <p></p> <p>It now works =)</p><div style="clear:both;"></div>