I tried TCP dump, but I'm pretty sure the problem is in the server. The nic does not stay powered on after poweroff.

I've gone through every bios settings, and I can't find any other settings besides PXE. When I go into the PXE bios, there is a Wake on Lan setting which is disabled. Each time I enable it, and save changes, powerdown, and go back into the bios it's disabled again.

It's a 2650, if that helps. I haven't been able to find anything in the 500 or so google searches I've tried.

tcpdump recieves the packet when the server is running (i think?)

23:38:11.955265 IP 10.42.0.22.51184 > 255.255.255.255.65535: UDP, length 116
23:38:12.547487 IP 10.42.0.22.51185 > 255.255.255.255.65535: UDP, length 116
23:38:13.021956 IP 10.42.0.62.51186 > 255.255.255.255.65535: UDP, length 116