SCCM: PXE-E53: No boot filename received

Another one that was unfortunate enough to not be on a virtual site.  The report from operations was that the PXE clients weren't receiving boot files.  I logged into the server and checked for the presence of the boot files in the RemoteInstall folder, and everything was in SMSBoot in both the x86 and x64 folders.  Both of the boot wim files were also present, so it looked good from a distribution point standpoint.  I took a look in the registry and noticed the WDSTFTP key was missing:

If TFTP isn't working, it would explain why the clients aren't receiving boot files.  I restarted the Windows Deployment Services service and saw this error in the event log:



Searching on this one brought me to the blog at http://blogs.technet.com/b/stufox/archive/2008/07/31/configuration-manager-pxe-service-point-errors.aspx where the resolution was to reinitialize WDS with the wdsutil /initialize-server /REMINST:"D:\remoteinstall" command.  (I changed it to E:\remoteinstall for our environment.)

Just need to get the site to test now...