How to fix the Oracle error INS-40928: An unknown interface error occurred during validation of cluster member nodes.?

In this post, you’ll learn more about the Oracle ErrorINS-40928: An unknown interface error occurred during validation of cluster member nodes. with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

INS-40928: An unknown interface error occurred during validation of cluster member nodes.

Reason for the Error INS-40928: An unknown interface error occurred during validation of cluster member nodes.

Cause: An unknown error occurred during validation of addresses or subnets on cluster member nodes.

How to fix the Error INS-40928: An unknown interface error occurred during validation of cluster member nodes. ?

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

Action: Ensure network interfaces are configured correctly, and that subnets are available on all nodes of the cluster. Ensure all nodes have at least one public interface on a subnet available on all nodes, and ensure all nodes have one public interface on the same subnet.