As the specification describes, there are 4 error code are defined as the response of "AT+CWJAP_CUR".
I'm trying reproducing all error codes, however only one error code "4:connection failed" cannot be reproduced.
So my questions are are below.
1. How can I reproduce "+CWJAP:4".
2. What should we do if the error code "4" is responded?
Just retry "AT+CWJAP_CUR" or reset the module?
Thanks in advance!
Better to just give up on the AP rather than restarting the ESP.
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