I work for a federal government agency that recently implemented FDCC settings which included firewalling the XP workstations. Our PXE servers in our remote locations do not work not with the firewall on them. I am trying to find out what port exceptions need to be implemented on the Windows firewall in order for this to work. I read through Symantec articles 32592, 17383, and 40429 and put in exceptions for PXEService.exe, PXEManager.exe, and PXE MTFTP.exe. I also put in port exceptions for the following ports: 67, 68, 69, 4011, 401, and 402. So far I still receive the Error 53: "No boot filename received" error.