How to fix the Oracle error CLSGN-00109: No interfaces available.?

In this post, you’ll learn more about the Oracle ErrorCLSGN-00109: No interfaces available. with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

CLSGN-00109: No interfaces available.

Reason for the Error CLSGN-00109: No interfaces available.

GNS was unable to find any interfaces on which it can listen for requests. This error is likely caused by the incorrect specification of the list of interfaces on which GNS is not to listen. Alternatively, it may be caused by an error in system configuration.

How to fix the Error CLSGN-00109: No interfaces available. ?

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

Correct the list of prohibited interfaces if it was set incorrectly. If this is not the case, check the system configuration.