CF10 on Oracle 11g RAC not working

Hi we are using coldfusion10 enterprice edition in our environment, we initiated to move our database to oracle 11g RAC cluster with 3 Nodes (configured TAF). our application is connecting fine to database using SERVICE NAME instead of SID. But where the database failover is not working.

when ever a node goes down the connection between application and database is lost, and it is taking several minutes to reconnect.

> Tried connecting to RAC using macromedia driver and ojdbc driver's too.

> Used Ora Client 11.2.2 to connect but no use, Failover is not working.

Please help.