ORA-30686: no dispatcher accepted TCP/IP

admin

ORA-30686: no dispatcher accepted TCP/IP connection request
Cause: A connection had tobe routed through a local socket rather than a
dispatcher. When this occurs, shared servers are less beneficial because thesession
that owns the socket cannot relinquish the process until the socket is closed.The
most likely cause is that no dispatcher is configured for protocol=tcp.
Action: To improve thescalability of your configuration, configure a dispatcher
for protocol=tcp. To route these particular connections through a particularset of
dispatchers, you can specify presentation=kgas. However, if you haven't doneso,
any protocol=tcp dispatcher will be used.