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The original was posted on /r/sysadmin by /u/FusionX-Steven on 2024-01-22 12:58:37+00:00.
Morning! We have 3 identical hosts in a Server 2019 Cluster. Same hardware, same network configuration. Absolutely losing my mind chasing this for over a week. One of our nodes is reporting "Cluster network name resource 'Cluster Name' failed registration of one or more associated DNS name(s). The error code was '-1'. Ensure that the network adapters associated with dependent IP address resources are configured with access to at least one DNS server." I triple checked everything in regards to DNS and can't shake this error.
Only one node has this error under the Cluster Events. Research suggested deleting / recreating an A record. This hasn't helped. Unfortunately I do not have enough resources to do a full migration out at the moment, evict the node, and try to join it again. Does anyone have any suggestions? All the VMs are running fine, it's just a single host node that is complaining.
When running nslookup DNS commands on the affected node, DNS resolution doesn't seem to be an issue, so I am really stumped. Thank you for your time.