WDS is closely linked to the DHCP server, however if the two roles are installed on different servers a slight modification to the DHCP needs to be made.
In this case it is necessary to add options 67 and 68 at the DHCP level.
- Option 66 : IP Address of the server
- Option 67 : boot\x86\wdsnbp.com
After this modification, pxe boot functions properly.