Hi,

From the log you’ve provided it looks that you’re using the default mosquitto configuration. Since some mosquitto release (I don’t recall which exactly), it is no longer possible to connect to a server running in a default configuration from a remote machine (and mosquitto informs you about that, please read the log carefully).

You need to create a custom config file (you can use the default config as a reference) and enable certain options, as explained in https://mosquitto.org/documentation/authentication-methods/ (in this particular case you’re interested in unauthenticated access). Then you need to run mosquitto, using that custom configuration (mosquitto -c <your_config>.conf).

Regards,

Robert

Hi yojanse,

from the output of mosquitto it really looks like the server socket binding fails. Have you tried connecting from a different machine for instance via telnet to port 1883 to check if it is actually reachable? If this doesn't help, try running wireshark on the MQTT broker to check out what is happening.

Regards,