How to fix the Oracle error CLSGN-00086: Service location initialization failed.?

In this post, you’ll learn more about the Oracle ErrorCLSGN-00086: Service location initialization failed. with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

CLSGN-00086: Service location initialization failed.

Reason for the Error CLSGN-00086: Service location initialization failed.

The GNS client failed when it tried to initialize the Resource Discovery subsystem.

How to fix the Error CLSGN-00086: Service location initialization failed. ?

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

Examine the message following this one. It will indicate the cause. If it is a number, consult rdret.h.