This error indicates that the TFTP server has returned an “Access Denied” error (TFTP code 2).

Things to try:

• Check that you are attempting to download the correct file.

• Check the permissions on the file you are trying to download.

• Check that you can download the file using another TFTP client, such as tftp-hpa on Linux.

• If you are using qemu's embedded TFTP server, try adding an extra leading slash to your filename (to work around a known qemu bug). For example, if your DHCP server is currently handing out

    filename "pxelinux.0";

  then try changing this to

    filename "/pxelinux.0";