About connect to DB2 7.2.4 and DB2 7.2.0 at one Integration

db2 7.2.0 connect ok,

db2 7.2.4
Could not connect: [IBM][JDBC Driver] CLI0621E Unsupported JDBC Server configuration

How to configurate the db2driver ?

Connect with COM.ibm.db2.jdbc.net.DB2Driver.

Server :webMethods Integration Server 4.6