Hi,
I was facing QMTOPEN problem in EC200U modem with SSL connection. I had tried many things and I was checked different kind of ways and I referred with old topics as per my problem but I can’t get solution, still I can’t to establish MQTT connection. Can anyone help to resolve this issue…Thanks.
AT
OK
ATI
Quectel
EC200U
Revision: EC200UCNAAR02A09M08
OK
AT+CREG
OK
AT+CREG?
+CREG: 0,5
OK
AT+CGREG?
+CGREG: 0,5
OK
AT+CSQ
+CSQ: 18,99
OK
AT+QIACT?
+QIACT: 1,1,1,"100.91.78.11"
OK
AT+CGDCONT?
+CGDCONT: 1,"IP","airtelgprs.com","100.91.78.11",0,0
OK
AT+QFLST="UFS:*"
+QFLST: "UFS:cacert.pem",1356
+QFLST: "UFS:client.pem",1060
+QFLST: "UFS:user_key.pem",1737
OK
AT+QSSLCFG="cacert",2,"UFS:cacert.pem "
OK
AT+QSSLCFG="clientcert",2,"UFS:client.pem"
OK
AT+QSSLCFG="clientkey",2,"UFS:user_key.pem"
OK
AT+QMTCFG="recv/mode",0,0,1
OK
AT+QMTCFG="SSL",0,1,2
OK
AT+QMTCFG="version",0,4
OK
AT+QSSLCFG="seclevel",2,2
OK
AT+QSSLCFG="sslversion",2,4
OK
AT+QSSLCFG="ciphersuite",2,0xFFFF
OK
AT+QSSLCFG="ignorelocaltime",2,1
OK
AT+QMTOPEN=0,"<HOST_NAME>",8883
OK
+QMTOPEN: 0,5 // I am getting this response repeatedly
AT+QCSQ
+QCSQ: "LTE",73,-103,84,-11
OK
AT+QSPN
+QSPN: "Airtel","Airtel","airtel",0,"40494"
OK
AT+CIND=?
+CIND: ("battchg",(0-5)),("signal",(0-5)),("service",(0,1)),("sounder",(0,1)),("message",(0,1)),("call",(0,1)),("roam",(0,1)),("smsfull",(0,1))
OK
AT+CIND?
+CIND: 0,0,0,0,1,0,0,0
OK
AT+QENG="SERVINGCELL"
+QENG: "servingcell","NOCONN","LTE","TDD",404,94,9571F0A,450,39150,40,5,5,D76E,-103,-11,-72,79,20
OK