https://devzone.nordicsemi.com/f/nordic-q-a/125824/ble-mesh-friend-and-lpn-nodeHi, I am trying to understand the Friend and LPN behaviour. For that I am refering to nRF sample application light&quot; and &quot;light_switch&quot;. Below is the setup details: 1. On one node sample app &quot;light&quot; is running 2. On a. Another node sample app &quot;light_switchen-USTelligent Community 13Sun, 21 Jun 2026 23:17:30 GMThttps://devzone.nordicsemi.com/thread/568225?ContentTypeID=1Sun, 21 Jun 2026 23:17:30 GMT137ad170-7792-4731-bb38-c0d22fbe4515:044feb9b-c086-4ac3-be68-14cbd74bea64Justin012<p>As I understand it, the Light and Light Switch samples mainly demonstrate LPN/Friend establishment, but it can be difficult to observe actual message caching unless the LPN is unavailable when messages are sent. <span style="color:#ffffff;"><a style="color:#ffffff;" href="https://wheelielife.io/">wheelie life</a></span></p> <p>One way to test it is to increase the LPN poll interval or temporarily prevent the LPN from receiving messages directly. Then send messages to the LPN from another node. The Friend node should store them and deliver them when the LPN sends a Friend Poll.</p> <p>Using a sniffer and enabling mesh debug logs can also help verify whether Friend Update and Friend Poll messages are occurring. I don&#39;t think a separate sample is required, but you may need a more controlled test setup to clearly see the caching behavior.</p><div style="clear:both;"></div>