How to fix the Oracle error ORA-09836: addCallback: could not add a port to the callback set.?

In this post, you’ll learn more about the Oracle ErrorORA-09836: addCallback: could not add a port to the callback set. with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-09836: addCallback: could not add a port to the callback set.

Reason for the Error ORA-09836: addCallback: could not add a port to the callback set.

The port_set_add system called failed.

How to fix the Error ORA-09836: addCallback: could not add a port to the callback set. ?

You can fix this error in Oracle by following the below steps

Possible operating system error. Contact Oracle support.