ESP32-WROVER-32-AT-V2.4.0.0 firmware cannot connect to Azure IOT hub.

[zh0903]

Answers checklist.

• [X] I have read the documentation ESP-AT Programming Guide and the issue is not addressed there.
• [X] I have used the latest released firmware or have updated my ESP-AT branch (master or release) to the latest version and checked that the issue is present there.
• [X] I have searched the issue tracker for a similar issue and not found a similar issue.

General issue report

Hello Espressif Team,

I flash newest ESP-AT firmware into my ESP32-WROVER board I run following AT command as https://docs.espressif.com/projects/esp-at/zh_CN/latest/esp32/AT_Command_Set/MQTT_AT_Commands.html :

AT+CIPSNTPCFG=1,8,"pool.ntp.org" AT+CIPSNTPTIME? AT+MQTTUSERCFG=0,3,"attest","hansHub.azure-devices.net/attest/?api-version=2021-04-12","",0,0,"" AT+MQTTPASSWORD=0,"MY_SAS_TOKEN" AT+MQTTCONN=0,"hansHub.azure-devices.net",8883,1

Get error in the last step. Same configuration works in MQTTX/MQTTBox tool. Here is the output of serial tool:

Would you like to told me:

1. If ESP-AT firmware can connect to(or support) Azure IOT hub? 2.Is there any way to output detail client/device side logs of AT-command?

Thanks!