Cluster network name resource ‘Cluster Name’ failed registration of one or more associated DNS name(s) for the following reason: DNS bad key. Ensure that the network adapters associated with dependent IP address resources are configured with at least one accessible DNS server.

You will get the Above error in the event viewer of Failover Cluster Manager , In order to solve the issue go to the properties of Public and Private LAN on all the nodes of the fail-over cluster , click TCI/IPV4 , Properties , Advanced , DNS Tab and uncheck  the option

” Register this connections address in DNS ”

DNS

 

 

 

 

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