PXE Booting: "No entry found in database for device."
After not using FOG for a few months, PXE booting no longer works on the subnet our FOG server resides on (172.20.3.0/24). PXE gets a response from DHCP but returns “No entry found in database for device”. The same machine on a different subnet is greeted with the FOG menu. The scope options in DHCP are identical for both subnets. We’re running FOG 0.32 on Ubuntu Server 12.04.2 (IP: 172.20.3.88) with separate servers providing DHCP and DNS.
Windows Server 2003 DHCP (172.20.3.55)
Scope option 066 = 172.20.3.88
Scope option 067 = pxelinux.0
I was able to verify that TFTP is accessible from this subnet:
>tftp 172.20.3.88 get pxelinux.0 >Transfer successful: 16967 bytes in 1 second(s), 16967 bytes/s
Any input would be greatly appreciated.