Deploying with MDT - Wyse Zx0

Hi, I am having an issue trying to deploy  with Microsoft Deployment Toolkit on my Wyse Thin Clients Zx0.

I am disabling the Secure boot and launching in PXE LAN.

It succesfully connect to my MDT server and succeed in downloading the NBP file.

Although after that, the boot menu appear on top of the screen and nothing more happens.

If I reselect the PXE LAN options, the same happens again.

Strange thing: I have the Zx0 wireless with Antenna model (manufactured MAY-2013) which work perfectly. This issue shows with the Zx0 without antenna (manufactured July-2014)...

Could this be a BIOS versions issue or...?

Thanks!