Trying to connect to PXE rep

Hi,

I'm working on getting the imaging setup for LANDesk, I created a Capture Template and now i'm having issues booting to the PXE server. I hit F12 on the computer and choose the NIC but it cannot find the PXE server.

Are there any steps in the Core server i have to perform first before booting to the network to pull down the image?

Thanks,