Problem with connecting to AWS MQTT broker using certificate

[Maher9494]

Hello,
I'm testing the new version of ESP-AT 2.0.0, My aim is to connect to amazon AWS server via MQTT using private key and a certificate.
I have followed the AWS instructions and created the thing on AWS.
the commands that I have issued are the following
AT+MQTTUSERCFG=0,4,"ESP32","","",0,0,""
response is OK
AT+MQTTCONN=0,"xxxxxxxxx-ats.iot.us-west-2.amazonaws.com",8883,0
the response is: +MQTTDISCONNECTED:0
ERROR
knowing that I have already put my certificates instead of the default generated mqtt_cert.bin and mqtt_key.bin and the mqtt_ca.bin
and then I have make factory_bin which was uploaded to the ESP32.

[xcguang]

We have a guidance about this, but it is in Chinese, https://blog.csdn.net/espressif/article/details/101714951.

[Maher9494]

Thanks A lot I have followed it and it has worked :)