CoAP connection prevents LTE module from switching to RRC idle modehttps://devzone.nordicsemi.com/f/nordic-q-a/127819/coap-connection-prevents-lte-module-from-switching-to-rrc-idle-modeI found that CoAP requests unexpectedly block GPS positioning. So, the solution is to add a synchronization semaphore between them. I stopped the CoAP request while waiting for GPS positioning to complete, but it still seems to prevent LTE mode switchingen-USTelligent Community 13Fri, 17 Apr 2026 11:03:24 GMTRE: CoAP connection prevents LTE module from switching to RRC idle modehttps://devzone.nordicsemi.com/thread/565101?ContentTypeID=1Fri, 17 Apr 2026 11:03:24 GMT137ad170-7792-4731-bb38-c0d22fbe4515:ab765e65-e176-4538-ab45-3ce258083d16Simon D-M<p>Hi,</p> <p>As a start, I can recommend you to check our <a href="https://academy.nordicsemi.com/courses/cellular-iot-fundamentals/">Cellular IoT Fundamental course</a> on Dev Academy. It contains a section dedicated to&nbsp;<a href="https://academy.nordicsemi.com/courses/cellular-iot-fundamentals/lessons/lesson-6-cellular-fundamentals/">GNSS</a>. In the <a href="https://academy.nordicsemi.com/courses/cellular-iot-fundamentals/lessons/lesson-6-cellular-fundamentals/topic/lesson-6-exercise-2/">exercise 2</a> of that section, it is explained in more details how to handle GNSS alongside LTE.</p> <p>If that wasn&#39;t enough, I&#39;ll probably need some code snippet or at least some better explanation on what your code actually do. In order for me to determine why the LTE modem didn&#39;t switch to RRC Idle.</p> <p>Best regards,</p> <p>Simon D-M</p><div style="clear:both;"></div>