NB-IoT sim card configuration on NRF9160 DK

[lunaa]

Hello,

I'm working on the mqtt_simple sample in zephyr environment for NRF9160 board.

We tested the firmware with 2 sim cards with different packets: IPv4 and IPv6, both supports NB-IoT.  However, the one with IPv6 cannot be configured to network due to Timeout Error -60, using the same source code as the IPv4. 

Do we need to change the configuration when we switch from IPv4 to IPv6?

Thank you.

[Heidi]

Hi!

The application uses getaddrinfo which eliminates IPv4 vs IPv6 dependencies, so I don't think there should be any extra configurations.

Which specific function is returning TIMEOUT? Could you provide a log from the application?

Best regards,

Heidi

[lunaa]

Hi, I cannot enable MQTT_log_level_dbg from the NRF configure. Can I enable it from the Kconfig file?

I was connecting to broker.hiveqq.com  

[Heidi]

Yes, just add "CONFIG_MQTT_LOG_LEVEL_DBG=y" to the prj.conf file of your application and build.