ASUS PCE-AC56 wireless card isn't picking up 5ghz signals

[friendshipguy]

Hey guys - I'm not sure if this is the right subsection of the form to post this on, but my network card isn't picking up 5ghz networks.

I've tried it using the network configuration tool on Windows, the utility that comes with the card, as well as uninstalling and reinstalling the drivers and the card a multitude of times.

Some details: There's one floor between the router on my PC that the card is plugged in to, though I'm quite literally 10 feet above the router. the 5ghz network is certainly on, everything else in my room is connected to it. I'm not quite sure what might be the situation here. It also picks up the 2.4ghz network absolutely fine.

For reference here's the card: ASUS Wi-Fi PCI Express Adapter (PCE-AC56)

[Crunchy Dragon]

This happened on my laptop, we think it's too old to connect to our 5Ghz network.