I was struggling with getting “MQTT is initial” state of 1 in response to AT+QMTCONN?. I didn’t know what it meant and how to resolve it. After much debugging here’s what I’ve found.
This error occurs when you try to check for a connection i.e. QMTCONN? after sending a QMTOPEN command but before the response of getting the successful connection. The below two sequences of command will better explain.
Situation 1: Successful connection
Situation 2: Unsuccessful connection
So this issue occured because the response time of AT+QMTOPEN=0,“12…url…243”,1883 with +QMTOPEN: 0,0 can be many tens of seconds. And strangely if AT+QMTOPEN? gives a successful opened response when queried in this time. So with +QMTCONN:0,1 response we can see that the opening is not yet successful.
Hope this helps anyone who has faced similar issue.