Turns out someone was annoyed that our network went down and plugged in their personal router. Thank you for the advice.
Posts made by dskinner
TFTP failure for PXE boot
I started experiencing this last week. DHCP is managed by an an outside provider, and they insist that setting 66 and 67 have been updated to make fog the PXE boot server. That in mind they just updated their windows server, and and firewall software. I can use terminal to reach it with tftp, and the status is active. I rolled back to a previous snapshot that worked 100% and I get the same timeout.