Frank Vestris [http://community.jboss.org/people/frankv] replied to the discussion "The DataSource is UNKNOWN run state" To view the discussion, visit: http://community.jboss.org/message/540370#540370 -------------------------------------------------------------- So .... I tried it in JBoss 6 and actually I could test the "Test Connection" button and the status is "Successful" but I still have the information: MySqlDS "DOWN" I've also tested with two others connectors versions: mysql-connector-java-5.0.8-bin.jar, mysql-connector-java-5.1.7-bin.jar ( initially  it was mysql-connector-java-5.1.10-bin.jar ) and it's the same behaviour. -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/540370#540370] Start a new discussion in Beginner's Corner at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&...]