Issues with PXE booting

Hey,

Recently I have downloaded the trail version of snap deploy to test to see if it is the right fix for us. I am however getting issues with trying to get PXE boot to work.

Initially i revived no IP address and the error PXE-E53: No boot filename received.

I then added DCHP option 66 and 67 and it got an IP address and then received the error PXE-E32: TFTP open timeout.

I am not sure I am entering in the right value for the PXE boot option 67 what file name should I be using ?