https://devzone.nordicsemi.com/f/nordic-q-a/75281/set-apn-on-nrf9160Hi, I am developing a program about using MQTT service. It needs to set the APN. I used the following code to set APN. The first step is to set APN, it always fails. But when the second step is to read the APN, it will show the right APN. At the sameen-USTelligent Community 13Wed, 19 May 2021 12:39:53 GMThttps://devzone.nordicsemi.com/thread/310443?ContentTypeID=1Wed, 19 May 2021 12:39:53 GMT137ad170-7792-4731-bb38-c0d22fbe4515:681f151f-41e8-4a7f-99e3-364fd2a0c77dxiao0528<p>Hi Didrik,</p> <p>Thank you.</p> <p>I didn&#39;t close the modem. I will close it and try the performance.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/310427?ContentTypeID=1Wed, 19 May 2021 12:11:15 GMT137ad170-7792-4731-bb38-c0d22fbe4515:12fe55de-0f62-4fea-bfed-766df45d19b1Didrik Rokhaug<p>Hi,</p> <p>Is the modem active when you send those commands?</p> <p>You can only set the default APN when the modem is offline.</p> <p>Best regards,</p> <p>Didrik</p><div style="clear:both;"></div>