[quote=“Uncle Frank, post: 42859, member: 28116”]Maybe try capturing the DHCP traffic to see which options are really send to the clients. Possibly an intermediate switch might change the filename on the way?!?[/quote]

Good call Uncle Frank. It looks like the DHCP server is passing the right IP and filename (unidonly.kpxe) to the client. Then the client turns around and asks FOG for undionly.0?? I don’t have that file in my tftpboot directory, but I renamed undionly.kpxe to undionly.0 and my clients boot right up! Hooray! Thanks for your help!