Unable to connect to MQTT server

Hello,

I am using nRF9160Dk. And trying to evaluate basic features.

Found that default modem firmware is not enabled with all the features hence after some research on the DevZone found one solution and found a prebuilt binary with all the features enabled.

Now for all the MQTT commands that are listed on the nRF connect SDK, response is being received. But I am not able to connect to any MQTT broker. I am using IPV6 only sim card. 

Hence my command is 

at#xmqttcon=2,"xxx","xxxxx","xxxx:xxxx:xxxx:xxx:0000:0000:xxxx:xxxx",1883

I am only receiving OK as response. But I am not receiving any "#XMQTTEVT" response. And also if I check the read command "AT#XMQTTEVT?" The set parameters are not stored in the NVRAM. 

Please help me fix this issue, Thanks in advance.

Related