PXE Disc-less boot

[Elterado]

I am trying to setup a thin client system using pxe boot. I have been trying to do it with CCBoot, however no matter what windows Os I use for the client, it either just stops or it gives me blue screen. The current setup is done with different hardware configs. All of them is giving me the same results. However the final machine for the server is a cor2Duo 3.0 with Server Mboard, 12GB ram, 2x1TB HDD. Running on it is Windows Server 2012 R2 data-center. The clients are citrix  thin clients with 512MB ram, but My current tests are being done on a Dell  e4200 laptop as the client with 2GB ram.

I am able to get the clients up to the windows loading screen, however when looking at the network activity, it would always stop transferring data at the same amount, win7 at 40.5MB and win8 at 57.4MB. Though I am unable to get past that no matter what the hardware, Tried Phenom2 x6. quadcore. I have tried 8 different server hardware configs thus far, and all get the same results. My conclusion is that it is not my hardware, but rather between the OS and the booting software. 

I would appreciate any help