How to fix the Oracle error ORA-12544: TNS:contexts have different wait/test functions?

In this post, you’ll learn more about the Oracle ErrorORA-12544: TNS:contexts have different wait/test functions with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-12544: TNS:contexts have different wait/test functions

Reason for the Error ORA-12544: TNS:contexts have different wait/test functions

Two protocol adapters have conflicting wait/test functions.

How to fix the Error ORA-12544: TNS:contexts have different wait/test functions ?

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

Not normally visible to the user. For further details, turn on tracing and reexecute the operation. If error persists, contact Oracle Customer Support.