AT+QMTOPEN error on BG96

Hi

I am currently using FW version for debugging ,but there is an error occurs with

AT+QMTOPEN.

Previously, no errors occurred when using FW version [BG96MAR02A07M1G] and

I was able to execute until publish.

Are there any differences in settings between BG96MAR02A10M1G and BG96MAR02A07M1G?

Would you please take a look at the settings below?

[2023-11-01_09:51:17:012]

[2023-11-01_09:51:22:171]RDY

[2023-11-01_09:51:22:857]

[2023-11-01_09:51:22:857]APP RDY

[2023-11-01_09:54:16:861]AT+COPS=1,2,“44020”

[2023-11-01_09:54:21:499]OK

[2023-11-01_09:55:09:275]AT+QSSLCFG=“cacert”,2,“cacert.pem”

[2023-11-01_09:55:09:275]OK

[2023-11-01_09:55:10:268]AT+QSSLCFG=“clientcert”,2,“client.pem”

[2023-11-01_09:55:10:268]OK

[2023-11-01_09:55:11:259]AT+QSSLCFG=“clientkey”,2,“user_key.pem”

[2023-11-01_09:55:11:259]OK

[2023-11-01_09:55:12:235]AT+QSSLCFG=“sslversion”,2,4

[2023-11-01_09:55:12:235]OK

[2023-11-01_09:55:13:257]AT+QSSLCFG=“seclevel”,2,2

[2023-11-01_09:55:13:257]OK

[2023-11-01_09:55:14:249]AT+QSSLCFG=“ciphersuite”,2,0xFFFF

[2023-11-01_09:55:14:249]OK

[2023-11-01_09:55:15:241]AT+QSSLCFG=“ignorelocaltime”,1

[2023-11-01_09:55:15:241]+QSSLCFG: “ignorelocaltime”,1,1

[2023-11-01_09:55:15:241]OK

[2023-11-01_09:55:16:228]AT+QMTCFG=“SSL”,0,1,2

[2023-11-01_09:55:16:228]OK

[2023-11-01_09:55:30:084]AT+QMTOPEN=0,“******************.iot.ap-northeast-1.amazonaws.com”,8883

[2023-11-01_09:55:30:084]OK

[2023-11-01_09:55:38:563]

[2023-11-01_09:55:38:563]+QMTOPEN: 0,-1

thank you.

before you have try to open one mqtt session with the AT+QMTOPEN , pls make sure that , your BG96 module has registered sucessful

I attached one successful log for BG96 mqtt at log

google IOT mqtt success.txt (1.2 KB)