JDBC Driver

Hi there!
I use a database ASA9!
Unfortunately, I get no connection to the JDBC client driver ...
Please someone can help me?

my steps
First include jconn2
2.load driver

Class.forName ("com.sybase.jdbc2.jdbc.SybDriver") newInstance ().;

3.Connect

String dbname = "F2";
String machinename = "192.168.1.44";
String dburl = "jdbc: sybase: Tds:" + machinename + ": 2638/ServiceName =" + dbname + "";
***************************
* conn = DriverManager.getConnection (dburl, props.name, props.pw);

when I do this on the host in stating it works with localhost and IP!
In the local network, not!

Db folder where file is being released?

Thank you