Once a device is discovered, the only way to delete it is to disconnect it from the network (see "Deleting a Device"). If the device is plugged back in, it will be re-discovered.
To Disable Automatic Device Discovery
Desktop Client
1.Open Main Menu > System Administration > General tab.
2.Uncheck Enable devices and servers auto discovery in the System Settings section.
3.When finished, press OK to apply or Cancel to discard changes.
1.Open Settings > System Administration > General.
2.Unheck the Enable auto discovery of cameras and servers checkbox.
3.Apply changes.
IMPORTANT: Once auto-discovery is disabled, new devices and servers will no longer be auto-discovered, they will have to be added manually.