Older version of the Realtek Network driver for Windows 7 x86 (to support a system being built for Windows 7 x64) does not correctly support the N120's LAN interface when being used with WDS or CC4. The driver is not selected and therefore a network connection is not available to complete the build process.
You may get the error message 'Action exception: abort on fail - action "Check network connection"'.
The available driver not fully include a matching device ID for the adapter present in the notebook:
The driver is sufficient to be used in a Windows 7 installation (either manually, using the setup program or even using DPINST) but it is not sufficient for WDS / CC4 to match the driver to the hardware during the hardware detection phase.
The Realtek LAN Driver dated May 2014 or newer resolves this problem: