Here is my datasource binding with no exceptions. 13:24:40,333 INFO [WrapperDataSourceService] Bound connection factory for resource adapter for ConnectionManager 'jboss.jca:service=DataSourceBinding,name=MySqlDSL to JNDI name 'java:MySqlDSL' 13:24:41,641 INFO Here is the actual exception 13:17:18,695 WARN [JBossManagedConnectionPool] Throwable while attempting to get a new connection: null org.jboss.resource.JBossResourceException: Could not create connection; - nested throwable: (com.mysql.jdbc.CommunicationsException: Communications link failure due to underlying exception: ** BEGIN NESTED EXCEPTION ** java.net.SocketException MESSAGE: java.net.ConnectException: Connection refused STACKTRACE: java.net.SocketException: java.net.ConnectException: Connection refused at com.mysql.jdbc.StandardSocketFactory.connect(StandardSocketFactory.java:156) at com.mysql.jdbc.MysqlIO.(MysqlIO.java:284) at com.mysql.jdbc.Connection.createNewIO(Connection.java:2569) at com.mysql.jdbc.Connection.(Connection.java:1485) at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:266) at org.jboss.resource.adapter.jdbc.local.LocalManagedConnectionFactory.createManagedConnection(LocalManagedConnectionFactory.java:151) at org.jboss.resource.connectionmanager.InternalManagedConnectionPool.createConnectionEventListener(InternalManagedConnectionPool.java:508) at org.jboss.resource.connectionmanager.InternalManagedConnectionPool.getConnection(InternalManagedConnectionPool.java:207) at org.jboss.resource.connectionmanager.JBossManagedConnectionPool$BasePool.getConnection(JBossManagedConnectionPool.java:534) View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3998577#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...