I have added a new esxi host which site 24x7 detected automatically and shows as 100% available.   However none of the details are populated, every field says no data available (CPU, Memory, Disk usage, Associated VMs, Associated Datastores, Network and ESX Details are all empty).

Furthermore all the VMs running on that host show as normal in site 24x7 but the "associated esxi host"  field shows the IP address of the host rather than the host name and has a not monitored link beneath the IP address.

I have gone through the KB page www.site24x7.com/help/admin/adding-a-monitor/vmware-esx-esxi-monitor.html and believe I have set it up correctly (including enabling MOB which appears to be disabled on the other 2 hosts so I am not sure why they are working!) and my new host has all the same permissions specified as the other 2 in vsphere and the same on-premise poller profile is set on all three hosts.

I need to get the new host details showing in site 24x7 before I am comfortable moving production workload onto that host, any help would be appreciated.