Hyper-V Node can't see its own cluster

Lanky Doodle 206 Reputation points
2022-10-20T16:53:34.37+00:00

Hi,

We have a 3-node cluster, all running Server 2019. We've just done a patch cycle for them and after the reboots one of the nodes can no longer manage the cluster from Failover Cluster Manager. However VMs can run on it just fine (Live Migration works to and from it as well)

Opening Failover Cluster Manager on this node just shows no clusters and if we manually add it we get 'Access Denied' error. Error code is 0x80070005

We've tried:

Evict it
Clear-ClusterNode
Reboot it
Rejoin it to cluster

All of that happens cleanly and successfully

All the usual services seem to be OK (Clustering, WMI, Server etc.)

I'm at a bit of a loss!

Hyper-V
Hyper-V
A Windows technology providing a hypervisor-based virtualization solution enabling customers to consolidate workloads onto a single server.
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Windows Server Clustering
Windows Server Clustering
Windows Server: A family of Microsoft server operating systems that support enterprise-level management, data storage, applications, and communications.Clustering: The grouping of multiple servers in a way that allows them to appear to be a single unit to client computers on a network. Clustering is a means of increasing network capacity, providing live backup in case one of the servers fails, and improving data security.
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  1. Limitless Technology 43,226 Reputation points
    2022-10-24T15:39:36.963+00:00

    Hello

    Thank you for your question and reaching out. I can understand you are having issues related to Cluster.

    1. Please try to reboot Cluster one more time.
    2. Run Cluster validation wizard and check Overall health of Cluster
    3. Run below command to give permission to your account.
      Import-Module FailoverClusters
      Grant-ClusterAccess -User <accountname> -Full

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