https://devzone.nordicsemi.com/f/nordic-q-a/111285/figuring-out-functional-state-of-nrf9160-modemI hope someone can help me here with my question. In my project we are using a nrf9160 with modem fw version 1.3.5. The application sends/receives data periodically (1 hour etc) using nB-Iot. Meanwhile it is in PSM. We were running for several timesen-USTelligent Community 13Wed, 22 May 2024 13:49:13 GMThttps://devzone.nordicsemi.com/thread/485444?ContentTypeID=1Wed, 22 May 2024 13:49:13 GMT137ad170-7792-4731-bb38-c0d22fbe4515:8e67203d-da3a-4f9a-bda5-01791175be42Hakon<p>Hello,</p> [quote user=""]Sending AT-commands periodically?[/quote] <p>Yes, that&#39;s an option. Just check if the modem responds to at cmds. It&#39;s hard to say what is best way to handle it if you do not know what is causing it to hang like that.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/484845?ContentTypeID=1Fri, 17 May 2024 21:27:25 GMT137ad170-7792-4731-bb38-c0d22fbe4515:2ba3aa24-3085-4a82-932f-1cbf0e9d8b35Amanda Hsieh<p>Hello,</p> <p>Most of the staff is away for a long weekend in Norway, so there will be some delays in response time. Thanks for your patience.</p><div style="clear:both;"></div>