Dear sudhanandasahu1990,

I'm working on secured MQTT and have problem that the error code always show 8089 when I try to connect to broker. I'm sure that the broker is OK as the MQTTfx can connect to it. 
I think the problem caused by exchanging certificates between TIA Portal and the broker. Could you show me how to exchange certificate in Tia Portal? Thank you so much

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Split from S71200 data publish &subscribe with microsoft azure cloud using MQTT protocol.