HCI IP Cluster not accessible

Link_0406 Lv1Posted Aug-11-2025 17:40

What could be the cause of this issue, HCI Ip cluster not accessible . but nodes and vms are reachable?

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Maybe there's a network inconsistency, if it happens often, try creating a ticket to support.
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Newbie337989 Lv2Posted Aug-11-2025 17:47
  
Maybe there's a network inconsistency, if it happens often, try creating a ticket to support.
AimanHakim Lv2Posted Aug-11-2025 22:39
  
Hi, meaning that the management interface is either down or intermittent
NyxZaleTech Lv1Posted Aug-12-2025 09:38
  
HCI Cluster IP Inaccessibility While Nodes and VMs are Reachable: Potential Causes

The issue of an inaccessible HCI cluster IP address despite reachable nodes and virtual machines (VMs) points to a problem within the cluster's networking configuration, rather than a fundamental failure of the nodes themselves. Several factors could be at play:

Network Configuration Issues

Incorrect Cluster IP Configuration: The most likely cause is an error in the configuration of the cluster's IP address. This could involve assigning the IP to the wrong network interface, using an IP address already in use, or a subnet mask mismatch. Double-check the cluster's IP settings and ensure they align correctly with the underlying network infrastructure.

Firewall Rules:
Firewalls on the HCI nodes or network devices might be blocking traffic to the cluster's IP address or the ports used by the cluster's services. Review firewall rules on all relevant components to ensure they allow necessary communication.

Routing Problems:
If the cluster IP address resides on a different subnet than the nodes and VMs, routing might be misconfigured. Verify that the routing tables on the nodes and network devices correctly direct traffic to the cluster's subnet.

Virtual Switch Configuration:
In virtualized environments, the virtual switch configuration plays a crucial role. Ensure that the virtual switch used by the cluster is properly configured and connected to the physical network, allowing communication with the cluster IP address. Incorrect VLAN tagging or trunking could also cause issues.

DNS Resolution:
Problems with DNS resolution could prevent clients from resolving the cluster's IP address to its hostname. Check DNS settings on the nodes and clients to ensure the cluster's records are correctly configured and accessible.

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