ESM Reject Cause #32

RE: ESM Reject Cause #32

Øyvind — Tue, 09 Apr 2024 07:36:24 GMT

Hi Gova, thanks for providing the logs. Are you sure you need the PDN information? Are you able to connect without adding this?

From the logs I see that you get reject cause EMM 15 and ESM 111, which from 3GPP TS 24.301 Annex A (EMM) and B (ESM) translates to

Cause #15 – No suitable cells in tracking area
This EMM cause is sent to the UE if it requests service, or if the network initiates a detach request, in a tracking
area where the UE, by subscription, is not allowed to operate, but when it should find another allowed tracking
area or location area in the same PLMN or an equivalent PLMN.
NOTE 3: Cause #15 and cause #12 differ in the fact that cause #12 does not trigger the UE to search for another
allowed tracking area on the same PLMN.

Cause #111 – Protocol error, unspecified
This ESM cause is used to report a protocol error event only when no other ESM cause in the protocol error class
applies.

Did you contact the network provider with this information?

Cause #32 – Service option not supported
This ESM cause is used by the network when the UE requests a service which is not supported by the PLMN.

Kind regards,
Øyvind

RE: ESM Reject Cause #32

Gova — Fri, 05 Apr 2024 12:59:40 GMT

Hello Oyvind,

Thanks for your reply.

I used the PDN sample,and made the following changes to the proj.conf file, to match my requirements.

CONFIG_NRF_MODEM_LIB_TRACE=y

CONFIG_LTE_NETWORK_MODE_NBIOT=y

CONFIG_PDN_DEFAULTS_OVERRIDE=y

CONFIG_PDN_DEFAULT_APN="nbiot"

CONFIG_PDN_DEFAULT_FAM_IPV4=y

I got the following output in terminal.

Also, here is the modem trace file.

devzone.nordicsemi.com/.../trace_2D00_2024_2D00_04_2D00_05T12_2D00_50_2D00_51.285Z.mtrace

Firstly, I dont know if i have configured the PDN sample properly for my requirement and used it.
Because, with cellular monitor, I was able to see that, ESM Cause #111 was received.

Also, inspite of having CONFIG_LTE_NETWORK_MODE_NBIOT = y, why was AT%XSYSMODE=1,1,1,3 was sent to the modem?

I still made a pristine build, before proramming it.

Your help is much appreciated.

Thanks,

Gova.

RE: ESM Reject Cause #32

Øyvind — Fri, 05 Apr 2024 10:47:56 GMT

Hello Gova,

Are you able to provide a modem trace? Did you try connecting using the PDN library? Will need more information in order to discuss with our cellular team.

Thanks!

Kind regards,
Øyvind