Problem with MQTT Conection

[Juanma]

Hello everyone. I am doing connection tests from an app in Android Studio (Java) and of all the connection attempts I make, in most of them I get the message “Connection with MQTT broker failed” (it rarely gives me connection established) and therefore I am not able to establish the connection with HiveMQ. I am attaching the code of my activity to see if someone knows what I am doing wrong.
My level in programming is low and therefore I have many doubts.
Thanks.

[Juanma]

Sorry, I forgot the second picture of the code.

[Daria_H]

Hi @Juanma ,

You indicated:

@Juanma

of all the connection attempts I make, in most of them I get the message “Connection with MQTT broker failed” (it rarely gives me connection established)

So in some cases, your code establishes the connection successfully, it does not fail every time, could you please confirm that for us?

If that is correct, did you already try using a random client ID instead of using the same client ID movi1 every time?

Thanks,
Dasha from HiveMQ team