This problem occurs when the Windows Management Instrumentation (WMI) service freezes on a node that has the quorum installed. In this situation, all other nodes restart their cluster services automatically, and during this process, the quorum moves to a node on which the WMI service is working. However, Failover Cluster Manager does not connect to the cluster from any node in Windows Server 2012 R2 or Windows Server 2012.
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