We will intermittant have an issue with Cisco devices where all interfaces will suddenly become unkown. If I go into manage nodes I can validate it fine. If I list resouces I can see the interfaces green. But in the web console they are still grey. I often have to delete and re-add the node. This however deletes any historical data (not to mention is frustrating). This seems to happen on one Orion server more than the other.