nRF9160-DK - is F/W Version 1.3.2 100% Compatible w/COAP?

[johnwest]

Hello All,

We have a new nRF9160 design - and I've updated the 9160 binaries to version 1.3.2 - on a few PCBA's - we're seeing an error like this:

Initializing COAP connection

date_time_set failed for: 00/00/2000-00:00:00 - dow=0, yday=0

ConnectCOAPServer, trying to connect to coap.cardiospire.com

Calling modem_configure ......

LTE Link Connecting ...

LTE Link Connected!

Modem configuration complete, requesting IMEI# ....

Trying to resolve IP for endpoint ingest/352656109806508/lz ....

Call getaddrinfo for Hostname=coap.abcdefghijklmnop.com

ERROR: getaddrinfo failed -11

Failed to resolve server name

ConnectCOAPServer() failed

====

Is is possible the 1.3.2 firmware update failed?

Thanks,
John W.

[johnwest]

This is returned w/AT Commands:

%HWVERSION: nRF9160 SICA B1A

OK

%SHORTSWVER: nrf9160_1.3.2

OK

[johnwest]

Hello Øyvind,

What AT command(s) should I run to verify the SIM is working properly?

(Not an AT command expert regarding LTE-M)

I've poked at the AT Command document - I've seen enough "not implemented" - so, I need to ask the above.

Thanks,
John

[Øyvind]

John, 

are you able to send AT commands in your application? If not, I was referring to the AT client sample that you will need to program your device with (overwriting the current application). 
You can try with AT+CEREG?

What SIM card are you using in your device? 

From what modem FW did you upgrade? And did the application work before upgrading?

[johnwest]

Hello  Øyvind,

We have a new board design - based on nRF9160 and nRF52840.  Most PCBA's are fine - work with LTE-M - no problem - those all are running 1.3.2.

Yes - we have a serial port monitor where I can send AT Commands.

I backed up to 1.3.1 since we're using AT&T (even though we can stream data to our COAP server with no issue with PCBA's that are working as designed w/1.3.2).

App works fine on majority of PCBA's - we're just seeing this issue on a few.

AT+CEREG just returns an ERROR.

Thanks,
John

[Øyvind]

John, thanks for reporting back.

johnwest said:

+CEREG: 5,4

4 – Unknown (for example, out of Evolved Terrestrial Radio Access Network (E-UTRAN) coverage)

Please provide a modem trace.

johnwest said:

I backed up to 1.3.1 since we're using AT&T (even though we can stream data to our COAP server with no issue with PCBA's that are working as designed w/1.3.2).

Do the failing devices work when you downgrade from 1.3.2 to 1.3.1?

Kind regards,
Øyvind