We have a number of offline nodes that show their status as normal, despite being completely offline. There is no DCI for Status, it's just a node with ICMP and SNMP enabled and has children interfaces generated by an old SNMP Configuration Poll.
What could be causing this?
Found the problem, if you have all the interfaces as 'ignore' then it will cause this situation, I expected the node to just rely on the Use ICMP on primary IP address to determine node status setting.