applet: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

I use lib mysql-connector-java-5.1.0-bin.jar in my applet. My applet signed.
In appletviewer all Ok. But in browser I have the next exeptions:

Last packet sent to the server was 0 ms ago.
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
    at java.lang.reflect.Constructor.newInstance(Unknown Source)
    at com.mysql.jdbc.Util.handleNewInstance(Util.java:353)
    at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:1074)
    at com.mysql.jdbc.Connection.createNewIO(Connection.java:2001)
    at com.mysql.jdbc.Connection.<init>(Connection.java:716)
    at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:46)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
    at java.lang.reflect.Constructor.newInstance(Unknown Source)
    at com.mysql.jdbc.Util.handleNewInstance(Util.java:353)
    at com.mysql.jdbc.Connection.getInstance(Connection.java:295)
    at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:266)
    at java.sql.DriverManager.getConnection(Unknown Source)
    at java.sql.DriverManager.getConnection(Unknown Source)
    at MySQL_connector.MySQLQueryRequest(MySQL_connector.java)
    at AEpplet2.makeSeriesChange(AEpplet2.java)
    at AEpplet2.createChart(AEpplet2.java)
    at AEpplet2.panelLoad(AEpplet2.java)
    at AEpplet2.loadGraphics(AEpplet2.java)
    at AEpplet2.start(AEpplet2.java)
    at sun.applet.AppletPanel.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)
Caused by: java.net.SocketException: java.security.AccessControlException: access denied (java.net.SocketPermission 10.0.0.5:3306 connect,resolve)
    at com.mysql.jdbc.StandardSocketFactory.unwrapExceptionToProperClassAndThrowIt(StandardSocketFactory.java:287)
    at com.mysql.jdbc.StandardSocketFactory.connect(StandardSocketFactory.java:177)
    at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:262)
    at com.mysql.jdbc.Connection.createNewIO(Connection.java:1926)
    ... 19 more

anybody can help me?