Grub2 EFI PXE getting "error: timeout reading" when it attempts to load kernel files from tftp server

[Rivard, Matthew T]

Using Grub2 with x86_64-efi built grub.efi, when I select a menu option (or even execute the linux (tftp)/Linux/vmlinuz command manually) it will locate the file and then timeout reading the file. 

 

I’ve tried a variety of methods, including set root=(tftp,10.0.0.3) first, and then executing linux Linux/vmlinuz,  but I get the exact same behavior. 

 

The in.tftp server log shows the request for the file and if I manually tftp to the server and do a get, it has no problem getting the file. 

 

Any advice on what might be the hiccup would be greatly appreciated.