windows 2000.8.1.6.

Our production database drops connection from 30minutes to 6 hours without any reason . One of our DBA
already tested out the connection in DMZ area and found out connection drops
periodically. We need to fix this issue as soon as possible. Following are the two error messages occurs when try to connect to the
outside server.
ORA-02068: following severe error from OPSWEB ORA-03113: end-of-file on
communication channel
Or
ORA-02068: following severe error from OPSWEB ORA-03114: not connected to
ORACLE