got some trouble with my WD NAS: Is does not allow including of devices. In normal mode it simply shows the green tick, but doesn't start inclusion mode. In expert mode it says:
Error handling data /ZWave.zway/Run/controller.AddNodeToNetwork(1)
i have had the same problem after a firmware update. Z-wave Europe, have help me by resetting my lic. key; after i have reload the lic. key and all gone right.