Last two days I've been having issues with a remote site that is connected to us by a IPSEC VPN with it's firewall being the DHCP server with a class C network. I am trying to get PXE working but no luck... I've done this many times but for this particular office we have a local DHCP on the same subnet where as the other offices are going through our central DHCP server using options 66/67. Issues I am having is that when I boot the computer of the network card, I get the MAC address and the GUID but when it gets to DHCP it just times out and I get a PXE-E53: No boot filename received. At first I figured maybe it's not obtaining an IP address but a quick look at the captured packets with the network monitor show otherwise. In the network monitor, I see a DHCP discovery then I see a DHCP offer with a correct class C address however like I mentioned earlier, the client does not show the address as it times out at the DHCP section. For the firewall I am using a Watchguard X10e which is configured for DHCP. I've tried removing and re-adding the boot images (32 and 64bit) and no luck. There's lots of info on this on the web but I could not find anything that helped me Any ideas?