Hello Eric , Have updated what you have suggested in the code.
Here is my output log : Initialized the lwip. Lwip IF is up now! Into MQTT create connection MQTT client created successfully. Connection to broker initiated MQTT Connection disconnected 256 Answering your question on why I want to use LwIP on my local system: I am using the LwIP library on a TI processor. Facing a callback issue there as well, but that is after the system has connected to the broker. I thought of getting the same setup running on my local system so I can understand the flow easily and debug the embedded code using this as the reference. I only have one question: When exactly is the mqtt_ connection_ callback () called ? It does return the status as MQTT_ CONNECT_ DISCONNECTED , but at what point in the code is it called? When a connection has been initiated.. or ? Regards, Chandana
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