NitroWall V1410 - PCI-E slot does not work

Hi,

I am setting up the new NitroWall V1410, and somehow my Intel AX200 Wi-Fi card that I plugged into the PCI-E slot (under the M.2 slot) does not work - it is not even powered from what I can tell (the kernel at least does not see it). M.2 slot works fine, so are other on board PCI devices.

In BIOS there are no mentions of PCI-E or wireless, even though Dasharo mentions those options in their documentation.

Is there a trick to making PCI-E slot work?

I am running Fedora, but I have also checked with the latest SystemRescueCD.