Well… This is embarrassing.
Good news I fixed it, i get into the PXE menu now! 😄
I do have a different question now, when I click boot from hard disk in the pxe menu it doesn’t load the operating system, any ideas for that?
For the issue relating to TFTP this is what happened:
I set up a packet scan on both the DHCP and PXE server and after analyzing the packets i noticed there were two different packets sending a different option 66 and option 67. One was right pointing to the FOG server and Undionly.kpxe the other however pointed to the DHCP server. Apparently an old image deployment software was still working even though the options weren’t configure anymore. I removed these and everything worked great!