I'm adding a replacement server that has the same netbios name and IP address of a server that was (until recently) monitored in a legacy domain.
Nodes: I removed the old node - verified no nodes exist with that ip or netbios name.
In the legacy domain: The old computer object has since been removed and no dns record exists in the old Active Directory domain.
In the current domain: The new server is a fresh OS, I assumed the same netbios name, seized the same ip address and joined.
I monitor plenty of nodes from this current domain.:
Firewall is off, no filtering appliances between the poller and the node.
Adding another node with the same creds, same domain, same group policy scope, works.
However, adding this node fails testing and validation.
Some tests:
These tests succeed in the current domain using the monitoring account from a few remote locations (including from the poller).
"portquery" - listening on 135
"nslookup" - resolves the name correctly
"wbemtest Enum Classes" - works "1194 Top Level classes"
"gwmi -ComputerName servername -class win32_computersystem"
Tips & suggestions are appreciated.