windows deployment services in windows server 2012 : operating system not found

Hello,

In order of learning WDS in Windows Server 2012, I created a simple test environment composed of :

• A Domain controler running WS 2K12 and hosting both DHCP and WDS services. (with the option of not listening port 67 checked while installing WDS)
• A test computer, with no operating system

I also added a Windows Server 2012 Standard WIM file and added also (located in [DVD]\sources\install.wim), boot file image (located in [DVD]\sources\boot.wim)

But now, when i start the client, it gives the following error:

While i don't find any reliable solution on Internet, Im looking for your help if ever, anyone faced this problem and found a solution for it or not

Thanks in advance!

Lotfi BOUCHERIT