https://devzone.nordicsemi.com/f/nordic-q-a/85830/turn-on-and-off-modemHi nordic. I want to turn on and off the modem of the nrf9160 when I&#39;m not using it. When I am using it, I am using your FTP library to sent sensor data to my server. Here is the problem, If I do this for example: On the last lte_lc_init_and_connecten-USTelligent Community 13Thu, 17 Mar 2022 15:26:25 GMThttps://devzone.nordicsemi.com/thread/358718?ContentTypeID=1Thu, 17 Mar 2022 15:26:25 GMT137ad170-7792-4731-bb38-c0d22fbe4515:7050e33e-c812-472d-aa17-8d37b02f5b31nWre<p>Hi! You are correct. I tried this and it worked fine. I still have some data transmission problems but I started another thread for this. Thank you Hakon, you the man.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/358713?ContentTypeID=1Thu, 17 Mar 2022 15:08:17 GMT137ad170-7792-4731-bb38-c0d22fbe4515:6cf4f160-9938-4beb-a7b3-80976080cd9fHakon<p>Hello,</p> <p>you&#39;re not supposed to initialize the modem more than once. So instead of calling lte_lc_init_and_connect() twice, you should just call <span></span><span><span><span>lte_lc_connect</span></span></span>() the second time since the modem is already initialized.</p><div style="clear:both;"></div>