Hi,
Thank you for posting the question to the Q&A forum.
From the screenshots, it seems that something is related to the network on the server. I would recommend to check this article : https://social.technet.microsoft.com/Forums/windowsserver/en-US/b1be178e-ae61-4a80-b880-b84b251a2d98/cant-connect-to-cluster-in-failover-cluster-manager?forum=winserverClustering
I also check this article official from MS but is not a case in this situation : https://learn.microsoft.com/en-us/troubleshoot/windows-server/high-availability/cluster-validation-failure-error-80070005
btw: Why you don't do the update from the Cluster Aware updating?
I hope the above information can help you.
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