Quectel BG96 TCP/IP

LPWA Module Series
BG96 TCP/IP Application Note
BG96_TCP/IP_Application_Note 49 / 53
4 Summary of Error Codes
If <err> is returned after executing TCP/IP AT commands, the details of error can be queried via
AT+QIGETERROR. Please note that AT+QIGETERROR just returns error code of the last TCP/IP AT
command.
Table 2: Summary of Error Codes
<err>
Description
0
Operation successful
550
Unknown error
551
Operation blocked
552
Invalid parameters
553
Memory not enough
554
Create socket failed
555
Operation not supported
556
Socket bind failed
557
Socket listen failed
558
Socket write failed
559
Socket read failed
560
Socket accept failed
561
Open PDP context failed
562
Close PDP context failed
563
Socket identity has been used
564
DNS busy