https://devzone.nordicsemi.com/f/nordic-q-a/58112/sending-mesh-reliable-messageHi, I&#39;m working on sending reliable message from server to client, the models are modified from RSSI model. When I tring to send messages to client it will keep sending until &quot;Reliable transfer of data has timed out&quot; and never hit SUCCESS. I coulden-USTelligent Community 13Thu, 27 Feb 2020 20:31:21 GMThttps://devzone.nordicsemi.com/thread/236992?ContentTypeID=1Thu, 27 Feb 2020 20:31:21 GMT137ad170-7792-4731-bb38-c0d22fbe4515:09385ae1-d921-49e9-ab16-783d5bd5ae9eSHawY<p>Thanks&nbsp;Mttrinh, I think I figured this out. It could works now.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/236903?ContentTypeID=1Thu, 27 Feb 2020 14:16:42 GMT137ad170-7792-4731-bb38-c0d22fbe4515:654ba5d2-a5dc-4229-83d2-ec7577d20d2cMttrinh<p>Hi,</p> <p>I suggest you have a look these two links: <a href="https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.meshsdk.v4.0.0/md_doc_libraries_how_to_models.html?cp=7_2_2_3_0" rel="noopener noreferrer" target="_blank">Creating new models</a> and <a href="https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.meshsdk.v4.0.0/md_models_vendor_simple_on_off_README.html?cp=7_2_2_3_1" rel="noopener noreferrer" target="_blank">Simple OnOff model</a>, it will give you an idea on how it should be done.</p><div style="clear:both;"></div>