BC95-CNV mqtt open network

Technical Subjects
1

Hello,

We are using BC35-G module before and we can open a MQTT network using following AT command:
AT+QMTOPEN=0,“true-florist.cloudmqtt.com”,1883

However, we switch to BC95-CNV module because BC35-G is EOL and not available now. We use the same AT command to open the network but it fails and returns:

+QMTOPEN: 0,-1

Is there any advice to solve the open network fail problem? Thanks!

2

add

AT+QIDNSCFG=8.8.8.8,8.8.4.4
AT+QMTOPEN=0,“true-florist.cloudmqtt.com”,1883

3

Thanks, we can connect to MQTT network now.

As we will use the same firmware for product using BC35 and BC95, can we send the at command
AT+QIDNSCFG=8.8.8.8,8.8.4.4 to BC35?

4

Yes, mainly because the network did not send DNS to the module caused