Incomplete Discovery

If the device is detected and responds to ping, but does not respond to Open Manage Network Manager actions (for example: Adaptive CLI), you may have only partially discovered it. Right-click the device in the Managed Resources portlet and select Direct Access > Telnet. If that menu option does not exist, it is only partially discovered. Right-click to edit the device, and add a Telnet Management Interface and Authentication in those two tabs of the editor.