(Error code 1d6a4a)
This error originated from one of the following locations within the iPXE source code:
DEBUG=nii(Please edit this page to include any of your own useful hints and tips for fixing this error.)
Compile with DEBUG=nii:3 example given
make bin-x86_64-efi/ipxe.efi DEBUG=nii:3
And then test with ifstat and ifopen net0.
You should now see some additional debug output from those commands.