How to fix the Oracle error ORA-06252: NETNTT: cannot open address file?

In this post, you’ll learn more about the Oracle ErrorORA-06252: NETNTT: cannot open address file with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-06252: NETNTT: cannot open address file

Reason for the Error ORA-06252: NETNTT: cannot open address file

The NTT two-task driver could not open a file containing address information.

How to fix the Error ORA-06252: NETNTT: cannot open address file ?

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

Make sure that the ORACLE_HOME environment variable has been properly set and exported. Make sure the instance you are attempting to connect to is actually up and running.