AWS IoT Android application over MQTT throws MqttException (0) - java.io.IOException: Already connected

Question

I am trying to use \'Authenticate using Cognito-Identity with Cognito user pool\' in my Android application. My Cognito user pool authentication works well, when I run that

Answer 1

When a client connected to broker it has a unique client ID. If clients tried to connect with same client id then this error occur. Use different client IDs like foo1, foo2, foo3, etc.