UDST 800 G1 sending weired UniqueID to DHCP-Server

Hi folks,

we got 3 new HP UDST 800 G1. To install all of them I turned on the network boot. We have a software deployment which starts installing them via PXE boot.

So heres the problem: After every start via network boot the computer sends a 32-digit uniqueID. The last 12 digits of the ID is the same as the MAC adress of the computer. DHCP lease is reserved for the "normal" Computer. The long unique ID gets another IP adress. Name field is blank.

So anyone out here with the same Problem?

Thanks and have a nice day!