@Quazz
Should there be a link?

@Quazz
Thanks!
I´m not completely sure what you mean.
Should i edit the file like this?

…
next-server 172.28.0.230;
option domain-name-server 10.66.109.10;

subnet…

Thanks for your help!
Here is the config.

The clients are not the problem. I run these commands before I started this thread.

Server

• FOG Version:6054
• OS: Ubuntu 14.04

Client

• Service Version:
• OS: Windows

Description

Hello,
I changed the DNS Server from 172.28.0.248 to 10.66.109.10 in /etc/dhcp/dhcpd.conf on the Fog Server (Fog is DHCP Server as well) and restarted the services and the server. Unfortunately the clients get the old DNS.
On an other fog server (0.32 Ubuntu 12.04) I did the same and everything works fine.
Can you help me please?

In /var/www/fog/service/ipxe I see these files:

At first I upgraded to SVN version, but I´am not completely sure, if this Version is installed and works. Where can I see if I´m using SVN version?
Then I upgraded to FOG-Trunk. I did a snapshot from the VM. So I can test, up- and downgrade easily. Unfortunately I got a lot of problems: Apache 2 and tftp didn’t start with a lot of errors. So I don´t want to upgrade to the trunk version at work.

I was to fast and wrote that it works, but it still doesn’t work - sorry for that.
The fog-menu appears now, but I can´t register the dell-client or clone the client, if I do a pre-staging.

Thank you very much! It works!

Is it possible to use ipxe.efi and undionly.kpxe with one dhcp-Server? I just konw that you can use static dhcp like this f. e.:
host dell-client {
file name=ipxe.efi
hardware ethernet 00:02:c3:d0:e5:83;
fixed-address 40.175.42.254;
}

Wenn the dell client boot the fog-menu I have to enter the ip of the tftp-Server. Can I automate this?

Here are two files of wireshark showing the tftp and bootp traffic during booting. Now the dchpd.conf is changed to ipxe.efi. As you can see in the tftp-File there is an error: The ipxe.efi file could not be found.
Do i need to install something? I just did an upgrade from fog 0.32 to 1.2 and it is the first time that i use the fog server with uefi.

1_1448436922402_fog_bootp2.pcapng.pcap
0_1448436922402_fog_tftp2.pcapng.pcap

Edit:
These files are in /tftpboot

@Sebastian-Roth
I changed the dhcpd.conf to ipxe.efi instead auf undionly.kpxe again and I got an other error as you can see in the picture.

@george1421
UEFI mode is on and secure boot is turned off. I interrupted during booting by pressing F12 and chose the network-Adapter IPv4

@Sebastian-Roth
A0:CE:C8:06:7E:2B ist the MAC of the Client (Dell).
00:26:18:94:18:a0 is the MAC of physical Ethernet Card of the Vmware-Server (not the VM).

I took of a video of the bootup. The booting is really very fast, but i could make a screenshot of the message.
After that the client boots again.

Maybe it is importent to know that the Fog-Server works fine with the same Network-Configuration, but other Client-Hardware.
I also tried to image the Dell-Client with a different Fog-Server (0.32) on Hyper-V, but i got the same mistake.