https://devzone.nordicsemi.com/f/nordic-q-a/53199/issue-with-closing-a-socket-after-sending-a-udp-messageDear All, I need to develop a low-power application that sends a UDP message, waits for a certain amount of time (5 seconds) for a response and if there is no response it closes the socket and goes to sleep. I am using the nRF9160DK This is theen-USTelligent Community 13Mon, 14 Oct 2019 11:17:54 GMThttps://devzone.nordicsemi.com/thread/214796?ContentTypeID=1Mon, 14 Oct 2019 11:17:54 GMT137ad170-7792-4731-bb38-c0d22fbe4515:28189d02-0f40-48fc-adb4-42ac4caae234Didrik Rokhaug<p>Hi.</p> <p>First of all, have you checked what PSM values you get from the network? You are free to request whatever you want, but it is up to the network to decide what you get.</p> <p>You can check the network granted PSM values using the +CEREG or %XMONITOR AT commands.</p> <p>Secondly, how do you go to sleep after receiving?</p> <p>When you close the socket, you close the connection to the server you were talking to, but you are still connected to the network.</p> <p>Best regards,</p> <p>Didrik</p><div style="clear:both;"></div>