not gonna lie this is driving me nuts PXE was working last week at teh new building. then teh network team swapped a switch, and now Surface devices show this:

>>Start PXE over IPv4.
Station IP address is 10.20.40.117
Server IP address is 10.20.1.15
NBP filename is
NBP filesize is 0 Bytes
PXE-E53: No boot filename received.
>>Start PXE over IPv6.
PXE-E16: No valid offer received.
Boot Failed. EFI Network.
They say the network is fine. i say it isnt. Whos right?
ive already redistributed the boot images and restarted teh WDS service on the distribution point just in case... nothing changed... what would u check first before i start an argument with networking? any ideas??
