"AT+CWJAP..." command stopped working

Question

From a certain point in time, the “AT+CWJAP…” commands stopped working. What could be the reason for this? How can this situation be corrected? The following commands also do not work (return ERROR): AT+CWLAP AT+CWAUTOCONN=…

austin · Answer

Hi @AndreyS When WizFi360 is working normally, no error is returned unless the parameter value is incorrectly entered when entering the AT command. When entering the AT command, make sure that a space is included at the end of the AT command. When copying and pasting an AT command, sometimes a space is included at the end of the AT command, causing the error. If the problem is still not resolved, please re-write the F/W and try again.

AndreyS · Answer

@austin thank you for the answer Please tell me if the AT commands are entered correctly here? image460×557 20.1 KB I rewrote F/W before and after creating this post, but it didn’t solve the problem. I tried the command “AT+CWAUTOCONN…” again - it returned “OK”.

austin · Answer

Hi @AndreyS Could you try factory resetting to UART0 rather than UART1? When factory resetting to UART0, it is ‘AT+RESTORE’, not ‘AT+RESTORE=1’.

AndreyS · Answer

Hi @austin Please explain what does “try factory resetting to UART0” mean?

austin · Answer

Hi @AndreyS WizFi360 provides two UART ports. image882×845 50.8 KB UART1, which is typically used to enter AT commands, and UART0 for debugging, which is not used. With UART0, you can enter some AT commands.

AndreyS · Answer

@austin OK To UART0: Then to UART1:

austin · Answer

Hi @AndreyS Could you check the MAC address?

AndreyS · Answer

Hi @austin image960×1280 166 KB

austin · Answer

Hi @AndreyS I think the MAC address was deleted due to a previous mistake and the MAC address was changed to ‘0x:08:DC:12:34:56’, which is the default MAC address on the F/W. So it seems that the problem is caused by the incorrect MAC address. Since entering the MAC address is a matter that should not be leaked to the outside, If you tell me your e-mail address, I will reply to you how to enter a new MAC address.

AndreyS · Answer

Hi @austin Thanks for the help. I sent you my e-mail address in a personal message.

AndreyS · Answer

Hi @austin I restored the mac address according to the instructions you sent me. After that, the problem was solved. Thank you for your help.