nrf-connect-sdk-intermediate Exercise 6 – FOTA over LTE-M/NB-IoT does not workhttps://devzone.nordicsemi.com/f/nordic-q-a/124668/nrf-connect-sdk-intermediate-exercise-6-fota-over-lte-m-nb-iot-does-not-workGood morning, I have tried to do the exercise 6 from the nrf-connect-sdk-intermediate course, my nRF9160 devKit can connect to nRF Cloud and download the new firmware. When running the program, a few errors appear (even without FOTA update deployeden-USTelligent Community 13Tue, 30 Sep 2025 10:52:29 GMTRE: nrf-connect-sdk-intermediate Exercise 6 – FOTA over LTE-M/NB-IoT does not workhttps://devzone.nordicsemi.com/thread/550137?ContentTypeID=1Tue, 30 Sep 2025 10:52:29 GMT137ad170-7792-4731-bb38-c0d22fbe4515:7aa95904-4ff8-4189-bedd-85d1f81f1ddbBastien42<p>Ok, thank you very much.</p><div style="clear:both;"></div>RE: nrf-connect-sdk-intermediate Exercise 6 – FOTA over LTE-M/NB-IoT does not workhttps://devzone.nordicsemi.com/thread/550132?ContentTypeID=1Tue, 30 Sep 2025 10:34:30 GMT137ad170-7792-4731-bb38-c0d22fbe4515:5b9d90f8-8b25-4d80-ac3d-1353bf207126Benjamin<p>The error just means your device first tried to connect over IPv6, but the network doesn’t support it, so the connection failed. It then retried over IPv4 and worked fine, so the update still downloads normally.</p><div style="clear:both;"></div>RE: nrf-connect-sdk-intermediate Exercise 6 – FOTA over LTE-M/NB-IoT does not workhttps://devzone.nordicsemi.com/thread/550109?ContentTypeID=1Tue, 30 Sep 2025 08:50:52 GMT137ad170-7792-4731-bb38-c0d22fbe4515:28db0533-6dd5-4d36-b300-ad265a96d72dBastien42<p>Hi Benjamin,</p> <p>I saw this error every time.</p><div style="clear:both;"></div>RE: nrf-connect-sdk-intermediate Exercise 6 – FOTA over LTE-M/NB-IoT does not workhttps://devzone.nordicsemi.com/thread/550099?ContentTypeID=1Tue, 30 Sep 2025 07:59:39 GMT137ad170-7792-4731-bb38-c0d22fbe4515:db1c7d24-6338-4fa2-8e47-daa1e497277aBenjamin<p><span>Hi Bastien,</span><br /><span>Looks like things worked out!</span><br /><br /><span>Error 114: </span><span>ENETUNREACH</span><br /><br /><span>Do you get this every time or was this a one time case? Looks like a network related error.</span></p><div style="clear:both;"></div>RE: nrf-connect-sdk-intermediate Exercise 6 – FOTA over LTE-M/NB-IoT does not workhttps://devzone.nordicsemi.com/thread/550023?ContentTypeID=1Mon, 29 Sep 2025 12:39:12 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f55202b2-545b-416a-a92e-7fa5abb03e7cBastien42<p>Adding</p> <p>this in prj,conf</p> <div style="background-color:#1f1f1f;color:#cccccc;font-family:Consolas, &#39;Courier New&#39;, monospace;font-size:14px;font-weight:normal;line-height:19px;white-space:pre;"> <div><span style="color:#6a9955;"># For settings subsystem</span></div> <div><span style="color:#569cd6;">CONFIG_SETTINGS</span><span style="color:#cccccc;">=y</span></div> <div><span style="color:#569cd6;">CONFIG_SETTINGS_NVS</span><span style="color:#cccccc;">=y &nbsp; </span><span style="color:#6a9955;"># Or CONFIG_SETTINGS_NVS=y if using NVS</span></div> <div><span style="color:#569cd6;">CONFIG_NVS</span><span style="color:#cccccc;">=y</span></div> <div><span style="color:#569cd6;">CONFIG_FLASH</span><span style="color:#cccccc;">=y</span></div> <div><span style="color:#569cd6;">CONFIG_FLASH_MAP</span><span style="color:#cccccc;">=y</span></div> <div><span style="color:#569cd6;">CONFIG_FILE_SYSTEM</span><span style="color:#cccccc;">=y</span></div> <br /> <div><span style="color:#6a9955;"># For MCUBoot + DFU</span></div> <div><span style="color:#569cd6;">CONFIG_BOOTLOADER_MCUBOOT</span><span style="color:#cccccc;">=y</span></div> <div><span style="color:#569cd6;">CONFIG_IMG_MANAGER</span><span style="color:#cccccc;">=y</span></div> <div><span style="color:#569cd6;">CONFIG_MCUBOOT_IMG_MANAGER</span><span style="color:#cccccc;">=y</span></div> </div> <p>&nbsp;and that in main.c</p> <p></p> <div style="background-color:#1f1f1f;color:#cccccc;font-family:Consolas, &#39;Courier New&#39;, monospace;font-size:14px;font-weight:normal;line-height:19px;white-space:pre;"> <div><span style="color:#c586c0;">#include</span><span style="color:#569cd6;"> </span><span style="color:#ce9178;">&lt;zephyr/settings/settings.h&gt;</span></div> </div> <div style="background-color:#1f1f1f;color:#cccccc;font-family:Consolas, &#39;Courier New&#39;, monospace;font-size:14px;font-weight:normal;line-height:19px;white-space:pre;"> <div><span style="color:#569cd6;">int</span><span style="color:#cccccc;"> </span><span style="color:#dcdcaa;">main</span><span style="color:#cccccc;">(</span><span style="color:#569cd6;">void</span><span style="color:#cccccc;">)</span></div> <div><span style="color:#cccccc;">{</span></div> <br /> <div><span style="color:#cccccc;">&nbsp; &nbsp; </span><span style="color:#569cd6;">int</span><span style="color:#cccccc;"> </span><span style="color:#9cdcfe;">err</span><span style="color:#cccccc;"> </span><span style="color:#d4d4d4;">=</span><span style="color:#cccccc;"> </span><span style="color:#dcdcaa;">settings_subsys_init</span><span style="color:#cccccc;">();</span></div> <div><span style="color:#cccccc;">&nbsp; &nbsp; </span><span style="color:#c586c0;">if</span><span style="color:#cccccc;"> (</span><span style="color:#9cdcfe;">err</span><span style="color:#cccccc;">) {</span></div> <div><span style="color:#cccccc;">&nbsp; &nbsp; &nbsp; &nbsp; </span><span style="color:#dcdcaa;">printk</span><span style="color:#cccccc;">(</span><span style="color:#ce9178;">&quot;Settings init failed: </span><span style="color:#9cdcfe;">%d</span><span style="color:#d7ba7d;">\n</span><span style="color:#ce9178;">&quot;</span><span style="color:#cccccc;">, </span><span style="color:#9cdcfe;">err</span><span style="color:#cccccc;">);</span></div> <div><span style="color:#cccccc;">&nbsp; &nbsp; }</span></div> <br /> <div><span style="color:#cccccc;">&nbsp; &nbsp; </span><span style="color:#9cdcfe;">err</span><span style="color:#cccccc;"> </span><span style="color:#d4d4d4;">=</span><span style="color:#cccccc;"> </span><span style="color:#dcdcaa;">settings_load</span><span style="color:#cccccc;">();</span></div> <div><span style="color:#cccccc;">&nbsp; &nbsp; </span><span style="color:#c586c0;">if</span><span style="color:#cccccc;"> (</span><span style="color:#9cdcfe;">err</span><span style="color:#cccccc;">) {</span></div> <div><span style="color:#cccccc;">&nbsp; &nbsp; &nbsp; &nbsp; </span><span style="color:#dcdcaa;">printk</span><span style="color:#cccccc;">(</span><span style="color:#ce9178;">&quot;Settings load failed: </span><span style="color:#9cdcfe;">%d</span><span style="color:#d7ba7d;">\n</span><span style="color:#ce9178;">&quot;</span><span style="color:#cccccc;">, </span><span style="color:#9cdcfe;">err</span><span style="color:#cccccc;">);</span></div> <div><span style="color:#cccccc;">&nbsp; &nbsp; }</span></div> <br /><br /><br /> <div><span style="color:#cccccc;">&nbsp; </span><span style="color:#dcdcaa;">k_sleep</span><span style="color:#cccccc;">(</span><span style="color:#569cd6;">K_SECONDS</span><span style="color:#cccccc;">(</span><span style="color:#b5cea8;">10</span><span style="color:#cccccc;">));</span></div> <div><span style="color:#cccccc;">&nbsp; &nbsp; </span><span style="color:#dcdcaa;">printf</span><span style="color:#cccccc;">(</span><span style="color:#ce9178;">&quot;Hello World! </span><span style="color:#9cdcfe;">%s</span><span style="color:#d7ba7d;">\n</span><span style="color:#ce9178;">&quot;</span><span style="color:#cccccc;">, </span><span style="color:#569cd6;">CONFIG_BOARD</span><span style="color:#cccccc;">);</span></div> <div><span style="color:#cccccc;">&nbsp; &nbsp; </span><span style="color:#c586c0;">return</span><span style="color:#cccccc;"> </span><span style="color:#b5cea8;">0</span><span style="color:#cccccc;">;</span></div> <div><span style="color:#cccccc;">}</span></div> </div> <p>Was enough to make the update successful.</p> <p>However this error remains&nbsp;[00:00:30.690,307] &lt;err&gt; download_client: Unable to connect, errno 114</p> <p>Without influence i hope.</p> <p></p> <p>Regards</p> <p>Bastien</p> <p></p> <p></p><div style="clear:both;"></div>