(Error code 2a07e0)
This error no longer exists in the iPXE source code. You should try using the latest version of iPXE.
(Please edit this page to include any of your own useful hints and tips for fixing this error.)
This error indicates that a UDP packet was received while a PXE UDP connection was open, but the packet was discarded because the PXE NBP was in the middle of an API call other than PXENV_UDP_READ. This generally indicates a bug in the PXE NBP. Please contact the iPXE developers.