WDS PXE Uefi not working in AD integrated mode, TFTP to slow

dear all

1 physical host: w2k12r2, 1 hyper-v virtual switch.

1 hyper-v vm w2k12r2 dc dns, dhcp, wds.

1 empty hyper-v vm generation 2 uefi booting network.

problem: error "pxe-e16: no offer received" on empty hyper-v vm when trying uefi boot wds in ad integrated mode.

i verified works when wds set-up standalone mode. see also: https://social.technet.microsoft.com/forums/windowsserver/en-us/ceca6149-bedd-4860-8a7f-a1c83bf99aa4/wds-efi-bios-wont-pxe-boot-into-efi-mode

ps: switch standalone mode: on wds server: wdsutil /verbose /uninitialize-server /server:<servername>; wdsutil /verbose /progress /initialize-server /server:<servername> /reminst:c:\rminst

cause (found netmon ip traffic monitoring):

the client asks tftp server on udp port 4011.

the tftp server takes more 8 seconds reply on port 4011.
seems due nbtns (netbios name search) broadcast queries searching 1c domain controllers.

solution: ???????

any appreciated.

dominique, zürich, switzerland.

hi dominique, zürich, switzerland.,

you can create virtual machine act client machine when building , testing deployment images. useful building custom images. note, however, performance degraded, particularly during trivial file transfer protocol (tftp) download phase. phase resource-intensive , may fail if insufficient resources available on server running hyper-v, use physical computer configure same settings monitor issue again.

the related kb:

windows deployment services overview

https://technet.microsoft.com/en-us/library/hh831764.aspx

i’m glad of you!

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