PXE don't start

Hi all,

I have all tutorials and all videos read and watch but I don't have a solution for my problem. I have no idea what to do in my case.

I have GSS Suite on a Server 2012R2 in a VM ESXI and on the same VM machina a windows 7 prof. Client. If I want to boot PXE

I become the following screen and after this my Win7 boot normaly but don't boot PXE. Is there anyone who have the same problem?

Thanks for your help