Can't figure out to to boot to my SCCM Server

[NiKiZe]

It is the message iPXE prints when your tftp server responds with opcode for TFTP_ERR_ACCESS_DENIED which mostly mean that the file is not globally readable, but it is an issue with your TFTP server so check the server logs.

The suggestion on the error page is very descriptive step-by-step things to check:

• 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