M.2 port only works on power cycle, not reboot
I am using an Intel 8260 Wireless card on the Up^2 m.2 pci-ex port, running ubuntu server 16.04 with ubilinux kernel.
Problem: On a fresh power up the wifi card is detected no problem, all works as expected. When I run a 'sudo reboot', upon boot, the wifi card is not detected. When I do a full power cycle, everything works as expected. I have replicated this problem on 2x up squared boards. Has anyone else seen this?