Hi all,

I have a windows 2012r2 failover cluster and recently I noticed that the cluster name is offline due to a failure of its IP Address:

Health check for IP interface 'Cluster IP Address' (address '10.16.18.70') failed (status is '55'). Run the Validate a Configuration wizard to ensure that the network adapter is functioning properly.

I've run the validation wizard (only for the network part coz the cluster is in production since some months) and everything is ok. If I try to bring online the IP addrees I receive a failure.

Go Cmd => run as admin

Cluster network

1) Cmd:\>CLUSTER RESOURCE

clustered service or application that uses the IP Address resource that you want to verify. View the status of the IP Address res

Hi Andrea Caldarone,

As the error information show us, the quick diagnose method is run the cluster validation to diagnose the potential issue faster, from your current information please first refer the following information to correct your network settings, such as we cant to use the same subnet net with cluster.

Understanding Requirements for Failover Clusters

https://technet.microsoft.com/en-us/library/cc771404.aspx?f=255&MSPPError=-2147217396#BKMK_Account_Infrastructure

Windows Server 2008 R2: Networking in Failover Clusters

https://technet.microsoft.com/en-us/magazine/hh535729.aspx

Configuring Windows Failover Cluster Networks

http://blogs.technet.com/b/askcore/archive/2014/02/20/configuring-windows-failover-cluster-networks.aspx

Im glad to be of help to you!