HP SUM displays the message Unable to login or identify node as a supported device when HP SUM cannot find a node

Solution: Ping the node to make sure it is on the network. HP SUM might not be able to connect to the node. If the node is running Windows, be sure an $Admin share is enabled.

If the node is an Onboard Administrator, be sure HTTP and SSH access are enabled for the enclosure in the Network Access settings section.