How to fix the Oracle error TNS-00031: INTCTL: internal NT error?

In this post, you’ll learn more about the Oracle ErrorTNS-00031: INTCTL: internal NT error with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

TNS-00031: INTCTL: internal NT error

Reason for the Error TNS-00031: INTCTL: internal NT error

Cause: Problem interfacing to the protocol adapters installed.

How to fix the Error TNS-00031: INTCTL: internal NT error ?

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

Action: Normally not visible to the user. Try starting INTCTL again. If the error persists, check the product installation. If it is correct, contact Oracle Customer Support.