Getting Error at JDBC Request : Can't get the Connection for specified properties

Hi,

I am getting error in JDBC request on test connection while using com.microsoft.sqlserver.jdbc.SQLServerDriver driver

Error :

Can't get the Connection for specified properties; com.microsoft.sqlserver.jdbc.SQLServerException: The TCP/IP connection to the host has failed. java.net.ConnectException: Connection refused: connect

Connection string :

jdbc:sqlserver://SD*****103\SQL*****:1433;databaseName=dbname;user=***user;password=PASS_VALUE

The same is working with Groovy script, but failing on JDBC request.

Please help on this as I'm unable to proceed further, this is a complete blocker for me.

Thanks in advance