https://devzone.nordicsemi.com/f/nordic-q-a/76665/china-mobile-nb-iot-connection-issue-on-band-5Hello, I&#39;ve tested multiple NB-IoT cards from China Mobile using the asset tracker on nRF9160 DK. The NB on Band 8 ( AT%XCBAND returns %XCBAND: 8) has no issue connecting to nrf Connect to Cloud, but NB on Band 5 got stuck on LED 3 blinking. Is thereen-USTelligent Community 13Wed, 23 Jun 2021 07:43:01 GMThttps://devzone.nordicsemi.com/thread/316613?ContentTypeID=1Wed, 23 Jun 2021 07:43:01 GMT137ad170-7792-4731-bb38-c0d22fbe4515:9fb5f87d-0686-40b1-bfcf-bb7fa63fc7f5Albrecht Markus Schellenberger<p lang="en-GB">Thanks for the feedback, Albert!</p> <p lang="en-GB">Regards,</p> <p lang="en-GB">Markus</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/316603?ContentTypeID=1Wed, 23 Jun 2021 07:13:31 GMT137ad170-7792-4731-bb38-c0d22fbe4515:23c20b20-a660-49a8-8bdb-d4295cdeabbdAlbertSerica<p>I contacted China Mobile and it seems that they turn off power-saving function to solve this problem. After that, the band 5 switched to band 8.</p><div style="clear:both;"></div>