Connecting EC200 to AWS mqtt broker

IoT Modules LTE Standard Module
1

I’m trying to connect my module to AWS iot core but I always get +QMTOPEN: 0,4 after AT+QMTOPEN=0,"a2wfoe9ldvva0z-ats.iot.sa-east-1.amazonaws.com",8884.

I uploaded the client certificate and key that aws gave me when I created a thing, and I am using the CA1 root certificate. Are those ok?
This is my script:

CMD=AT+QICSGP=1,1,"wap.gprs.unifon.com.ar","","",0
CMD=AT+QMTCFG="recv/mode",0,0,1
CMD=AT+QMTCFG="SSL",0,1,2
CMD=AT+QSSLCFG="cacert",2,"UFS:cacert.pem"
CMD=AT+QSSLCFG="clientcert",2,"UFS:client.pem"
CMD=AT+QSSLCFG="clientkey",2,"UFS:user_key.pem"
CMD=AT+QSSLCFG="seclevel",2,2
CMD=AT+QSSLCFG="sslversion",2,4
AT+QSSLCFG="sni",2,1
CMD=AT+QSSLCFG="ciphersuite",2,"0xFFFF"
CMD=AT+QSSLCFG="ignorelocaltime",2,1
CMD=AT+QMTOPEN=0,"a2wfoe9ldvva0z-ats.iot.sa-east-1.amazonaws.com",8884

Am I doing something wrong? Did I miss something?

2

Hi @Juan_Flores
You need to upload the certificate to the module via AT+QFUPL command first, and then configure the certificate via AT+QSSLCFG command.

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