This cluster node has no network connectivity. It cannot participate in the cluster until connectivity is restored. Run the ...

This cluster node has no network connectivity. It cannot participate in the cluster until connectivity is restored.  Run the Validate a Configuration wizard to check your network configuration. If the condition persists, check for hardware or software errors related to the network adapter. Also check for failures in any other network components to which the node is connected such as hubs, switches, or bridges.