AT command not working when network mode is "NB-IoT" in "mqtt_simple"

[Balamurugan]

HI,

AT command not working when network mode is "NB-IoT" in "mqtt_simple",

If network mode is "LTE-M" then AT command is working fine.

Snapshot with network mode is "NB-IoT"  in "mqtt_simple":

Snapshot,  network mode is "LTE-M"  in "mqtt_simple":

Please help me to resolve the issue.

Last week I updated my code base(having lasted code) , after that issue is occurring.

Thanks.

[Martin Lesund]

Hi Bala,

Please try to set the config directly in the prj.conf file:

CONFIG_LTE_NETWORK_MODE_NBIOT=y

I was able to send AT-commands by doing it this way.

Best Regards,

Martin L.

[Balamurugan]

I tired setting in prj.conf, it didn't work. Same issue.

Also when set using AT command also facing same issue.

[Balamurugan]

After setting NB-IoT mode, only "AT+CFUN=1" is working, after that non of the AT command is working.

[Balamurugan]

After enabling logging level to "Debug" in "AT command driver"  it started working. but don't know the relation between "NB-IoT" and logging level to execute the AT command.

Thanks,

Bala

[Martin Lesund]

Hi Bala,

Are you using NCS v1.0.0? 

(I am not able to reproduce the issue)

[Balamurugan]

I pulled lasted code without giving version(v1.0.0).

Should I try using NCS v1.0.0?

[Martin Lesund]

If there aren't any specific reason for you to use the master branch (latest code), then I would recommend that you use v1.0.0 since it is in a stable state.