Sometimes when I view the PXE Configuration Utility I do not see all my PXE servers listed.
I wrote a quick script that will go through all my PXE servers and restart the PXE helper service to reconnect them.
I have attached three files inside a single zip. Each of these files need to be in the same directory.
PXEREstart.bat - Kicks off the script. You will run this.
PXEServers.txt - You will list all your PXE servers you use.
PXEHelper.vbs - The VBscript that will run the job.
I hope this helps...