https://devzone.nordicsemi.com/f/nordic-q-a/121929/chat-warning-in-ble-mesh-with-nrf52840Hello, I have a ble mesh with a nRF52840 Eval board and a certain number of nRF52840 dongle nodes. I communicate via mesh Chat between the Eval board and the nodes. Till now all was perfectly working, but today, when the Eval board asks somethingen-USTelligent Community 13Wed, 04 Jun 2025 08:32:43 GMThttps://devzone.nordicsemi.com/thread/537993?ContentTypeID=1Wed, 04 Jun 2025 08:32:43 GMT137ad170-7792-4731-bb38-c0d22fbe4515:aac30048-0176-4389-994c-87a0053ebbf3JONATHAN LL<p>Hi Stefano,&nbsp;<br /><br />Have a look at the reply here:&nbsp;<a href="https://devzone.nordicsemi.com/f/nordic-q-a/118451/false-detection-of-replay-protection?ReplyFilter=Answers&amp;ReplySortBy=Answers&amp;ReplySortOrder=Descending">https://devzone.nordicsemi.com/f/nordic-q-a/118451/false-detection-of-replay-protection?ReplyFilter=Answers&amp;ReplySortBy=Answers&amp;ReplySortOrder=Descending</a>&nbsp;<br /><br />What you are seeing is a message replay protection it seems, where this warning is out-of-order message delivery is the cause.&nbsp;<br /><br />Regards,<br />Jonathan</p><div style="clear:both;"></div>