How to fix the Oracle error CLSDNSSD-03999: unknown error: number.?

In this post, you’ll learn more about the Oracle ErrorCLSDNSSD-03999: unknown error: number. with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

CLSDNSSD-03999: unknown error: number.

Reason for the Error CLSDNSSD-03999: unknown error: number.

A DNS error code was returned that is not known to the system. This is an internal error.

How to fix the Error CLSDNSSD-03999: unknown error: number. ?

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

This error should not be visible to the user. If it occurs, please contact Oracle Customer Support.