What exactly is the issue you;re seeing here? Some graphics output issue?
Generally you do not need a monitor attached to pfSense so an AIO style box isn't a good target.
I'm going back to the drawing board. I think at this point I should stick with something Intel based. Thanks for all the replies.
Do you have a switch between the modem and pfSense?
I would expect power cycling the modem to restore the connection if ifconfig donw/up works.
The message is pretty clear, you can't use traffic shaping on ixl interfaces.
Next time check the supported devices on altq before you buy a NIC.
Like an i3-8100t? Then yes. Easily.