@cschneider-tech All those posts are pretty up to date I think. The difference is that the other two posts are talking about UEFI instead if BIOS (like this one here)!
From your picture it looks all pretty good. iPXE comes up, gets an IP and tries to load the next iPXE binary from the TFTP server. By the way, I’d suggest loading default.ipxe from the TFTP straight away instead of going through another iPXE loop. But anyhow. Make sure you got the IP address correct and make sure your TFTP server is properly running: https://wiki.fogproject.org/wiki/index.php/Troubleshoot_TFTP