We have an imaging environment based on Windows Server 2012 R2 using WDS with MDT.
For optimal speeds, each imaging station has a server dedicated to it, with its own Multicast address space.
Due to the success and speed accomplished with 10 stations being served by 10 servers, we wanted to scale to 18 stations (so let's call it an even 20, as that was I was building for).
We utilize the registry change to
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\WDSServer\Providers\WDSPXE\Providers\BINLSVC]
"AllowServerSelection"=dword:00000001
as to allow us to choose which PXE server to boot to (as detailed here: http://www.stephan-schwarz.net/?p=58 )
However, we have run into a problem- the menu to select a server caps out at 17 servers for older environments (Legacy BIOS) and 16 for UEFI. This was confirmed both within a BIOS and UEFI VMWare environment, as well as our primary deployment device (17 for Legacy, 16 for UEFI). The devices are to be UEFI Secure Boot, so the cap for us is 16.
Is there anywhere I can turn to increase this limit? I'm not going to be surprised if the answer is no.
However, has anyone made a PXE loading page allowing a user to choose a particular server? I had built in the past such a menu using TFTP and Ghost, and I see this article on doing something similar for WDS, but I don't know if it can just point at any other PXE servers.
Thanks for your time.