You have a server that runs Windows Server 2008 Enterprise Edition. The server has the Failover Clustering feature installed. The server has three nodes named NODE1， NODE2， and NODE3.  The Microsoft Distributed Transaction Coordinator （MSDTC） resource is installed on the cluster. The cluster has a dedicated cluster group named Group1 that includes the MSDTC resource.  You discover that Group1 is unable to failover to NODE3 from NODE1 or NODE2. The failover from NODE1 to NODE2 functions without errors.   You need to configure Group1 to support the failover between all cluster nodes. What should you do？（）