in virtualbox 7.0 pxe boot ends in this error message:
pxe-e32 tftp open timeout
I searched these forums and google and could not find an answer.
then I came across a post that was not directly relasted and the fix was disable symantec endpoint. 3 cheers for that random poster.
I am putting this here to maybe save some one else a whole work day of looking for the right answer to get PXE working, When everything else seems right.