Dear DurgaPhanindra-Oracle,

Thank you for your comment.

I remember I had some problems initially when I was implementing the encryption and I solved them by changing some hidden oracle variables:

ALTER SYSTEM SET "_heartbeat_period_multiplier"=60 SCOPE=SPFILE;
ALTER SYSTEM SET "_heartbeat_config"=AUTOCONNECT SCOPE=SPFILE;
ALTER SYSTEM SET EVENT='28420 trace name context forever, level 10:28421 trace name context forever, level 3' COMMENT='HSM heartbeat timeout and reconnect attempt' SCOPE=SPFILE;

Thanks

Paulo