BUG in undionly.kpxe

[Alphakarem]

I have came across a bug in undionly.kpxe ( the latest version ) and would like to draw your attention to it if I may, here is the situation :

DHCP Server : ISC DHCPd
OS : Centos 6.5 as a KVM Host
Hardawre : DELL Poweredge 2950

DHCP Server : ISC DHCPd
OS : Centos 6.5 as a KVM Host
Hardawre : SuperMicro

issue :
When trying to boot a VM from iPXE on the DELL it causes the VM to enter a Paused state where it will not be reset.

Troubleshooting steps :
1-) New VM was created with new HDD on both hosts.
2-) Trying boot from the SuperMicro Host ( Issue DOESN'T exist )
3-) Trying to boot from the DELL Host ( Issue EXISTS )
4-) Booting from the older version of undionly.kpxe on both hosts works well.
5-) Booting from VMware Workstation ( Issue DOESN'T Exist )

Please look into this issue and let me know what is it and how to remedy it.
right now I am just using the older version of undionly.com

Thank you