Error Code 4 Returned by lte_lc_conn_eval_params_get() Function after 12 Hours

[Praveen Deshmane]

Hello DevZone community,

I have been using the lte_lc_conn_eval_params_get() function in my application, which is executed periodically.

However, I'm encountering an error after exactly 12 hours of operation. The error code returned is 4.



My Environment

NCS - SDK 1.9.1
Device - nrf9160 customized one

Error log

[2023/05/16 23:42:26] [lte_thread] [ERROR] lte_lc_conn_eval_params_get error 4

I'm seeking assistance in understanding the possible causes of this error and any recommended solutions or workarounds to resolve it.
Any insights or experiences shared would be greatly appreciated.

Thank you in advance for your help!

Best Regards

Praveen Deshmane

[SwRa]

Hello,

I am sorry, but we are short staffed this week due to Public Holidays in Norway. We will be back on Monday 22nd and hope to be able to answer all incoming requests within a couple of days, depending on the backlog. I am sorry for the inconvenience.

 Best regards,

Swathy

[Praveen Deshmane]

Hello SwRa,

I need help in solving this problem. Please help me out.

Best Regards

Praveen Deshmane

[JONATHAN LL]

Hi Praveen,

Can you share more info about what you are doing and how the project is set up ?


Are you using GPS simultaneously ?

Regards,
Jonathan

[Praveen Deshmane]

Hello Jonathan, 

Thank you for your time and reply.

We are not using GPS simultaneously.

My Environment

NCS - SDK 1.9.1
Device - nrf9160 customized one

We are sending data to API server for every 10 seconds. After 12 hours the LTE connection will be closed and we get the below error message. 

[2023/05/16 23:42:26] [lte_thread] [ERROR] lte_lc_conn_eval_params_get error 4

Best Regards

Praveen Deshmane

[JONATHAN LL]

Can you provide us with a modem trace? This will help us see what is going on at the time of the error. 

https://infocenter.nordicsemi.com/topic/ug_trace_collector/UG/trace_collector/collect_modem_trace.html?cp=11_3_3_3 

Regards,
Jonathan