https://devzone.nordicsemi.com/f/nordic-q-a/28670/mesh-server-model-receives-wrong-dataHi, I&#39;m developing a server model and a client model(Both example are modified in accordance with the example of light_switch). In the example of client, I use the API &quot;simple_on_off_client_set&quot; to send a command with 16 bytes to server. The serveren-USTelligent Community 13Wed, 20 Dec 2017 12:33:00 GMThttps://devzone.nordicsemi.com/thread/113627?ContentTypeID=1Wed, 20 Dec 2017 12:33:00 GMT137ad170-7792-4731-bb38-c0d22fbe4515:ef6ff484-0b02-4f3a-92ab-1ee450e40613Hung Bui<p>Hi Kuo,</p> <p>Scan windows smaller than scan interval shouldn&#39;t cause any problem. It&#39;s just mean that it will not scan 100% of the time but still if a packet is inside the scan window then it should be fine. Packet outside of scan window will be rejected.</p> <p>Regarding the issue with wrong data. How often do you see the issue ? Could you provide us a simplified example that can reproduce the issue ? Have you checked the incoming data at access layer (check mesh_msg_handle() inside access.c) ?</p><div style="clear:both;"></div>