The Easysoft JDBC-ODBC Bridge JDBC driver has attempted to connect to the specified JDBC-ODBC Bridge Server, but there is an access control rule on the server machine which denies your client access. You need to use the JDBC-ODBC Bridge web administration interface to examine the access control rules. Point a web browser at:
http://myserver:8031
Then select Security. The access control rules are defined on this page.