Response to LTE communication failure of the spresense

When communicating using the LTE board of the spresense,
Sometimes,

ERROR:LTEClient:137connect() error:113

An error occurs and the program stops.
I would appreciate it if you could tell me how to deal with this error.

spresense

2022-09-30 22:00

1 Answers

ECONNABORTED is "Software caused connection abort", so the connection seems to be interrupted from the IP stack.
Therefore, it would be good to check the status using lteAccess.getStatus(); and lteAccess.attach again if LTE_ERROR.

Also, it seems that modem reset occurs with old firmware, so I think the same error will appear.
Why don't you refer to the following page for firmware updates?
Update tool (RK_02_01_01_10_41_15->RK_02_01_02_10_108_54)

Reference
SDK Ver2.3.0 Example_awsiot for a long time results in errors and resets

2022-09-30 22:00

If you have any answers or tips

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