WIZnet Developer Forum

WIZ550S2E problem with MQTT

I have a problem with establishing a connection with the mqtt broker. I uploaded the latest 1.3 firmware. If I do not give any subscribe and publish topic, the module connects correctly. Unfortunately, if I give it, the module connects and immediately disconnects, which blocks my entire broker and nothing works.

I just noticed that the problem only occurs if you set up a Publish topic. When it is not set, everything works. I can send data via subscribe topic.

Hello, @dziob,

I set up pub/sub topic for WIZ550S2E but it works well. (establishing a connection & send data)

I think need to check the set options.

Please capture and upload the configuration tool screen.
I will check and respond.

Thank you.

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