A green icon 50x50_trans.png
Indicates that the device is connected to AppNeta Performance Monitor (APM).
A black icon 50x50_trans.png
On the Manage Monitoring Points Page indicates that the device is not connected to APM. Be careful not to get this confused with the black icon next to paths, which means that the device lost its connection to the path target.
A yellow icon 50x50_trans.png
Appears when the device needs an update, does not have a license, or is experiencing an error.