Problems casting to new HP Machines

Hi.

Ive run into a problem where i work.

We bought 30 new HP elitedesk 800 G2 which i would like to image. Im using 2.5 with the 3com tools. Im trying to boot with PC-DOS

But when i try i get stuck at the Transferring Image. Can this be driver related? im using the universal packet driver 2.0.

The nic in these computers are named intel i219-LM.

We also have some HP elitedesk 800 G1 with intel i217-LM, here the image i have created works perfektly. also our 5 years old HP DC7900 works with the same pxe/sys file.

Are there any newer Universal packet driver availeble?