# Disabling Automatic Discovery

Navigation: Working with Nx Witness > Device Management (Cameras, Encoders and I/O Modules) > Adding Devices (Cameras, Encoders and I/O Modules) > # Disabling Automatic Discovery |

Once a d evice is discovered, the only way to delete it is to disconnect it from the network (see "Deleting Devices"). If the device is plugged back in, it will be re-discovered.

To disable automatic device discovery

1.Open Main Menu –> System Administration (shortcut Ctrl+Alt+A) –> 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

IMPORTANT: Once auto-discovery is disabled, new devices and servers will no longer be auto-discovered, they will have to be added manually.