pub.db:execSQL fail: [IBM][JDBC Driver] CLI0615E Error rece

pub.db:execSQL fail: [IBM][JDBC Driver] CLI0615E Error receiving from socket, server is not responding. SQLSTATE=08S01

Product webMethods Integration Server
Version 4.6
Updates IS_4-6_SP2, IS_4-6_SP2_Fix150

Database: db2/linux 7.2
DB Driver: COM.ibm.db2.jdbc.net.DB2Driver

Did you make JDBC DB2 adapter working, we are also getting same error, any help will be greatly appreciated.
Thanks