I am trying to publish data through desktop MQTT Client, but it's get connected but when I am doing subscribe it says connection lost?

Question

Siddharth Lotia 2022-2-26

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https://ww2.mathworks.cn/matlabcentral/answers/1659000-i-am-trying-to-publish-data-through-desktop-mqtt-client-but-it-s-get-connected-but-when-i-am-doing

评论： Siddharth Lotia 2022-3-1

采纳的回答： Christopher Stapels

Hi , I am doing this excample , I have configured MQTT X client , it gets connected to my channel .

But when I am doing subscribe , it get's disconnected , says client not connected?

Also even after entering the required data in topic as per the excample it still says topic required, why it is so?

Someone kindly suggest what I am doing wrong in these two steps?

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Answer 1

Christopher Stapels 2022-2-28

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The topic location is a little confusing. Where it says "topic" you need to edit that field.

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Siddharth Lotia 2022-3-1

Hi , thanks .

Earlier in the day , I found out this. I think it is really deceptive , Mathworks team should add some photo of this in that example for more clarity to the users

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Answer 2

Vinod 2022-2-28

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If the connection is being dropped when you attempt to subscribe, it is most likely you are subscribing to an incorrect topic, or to a topic your client does not have permissions to.