Can't connect my devices to 5GHz wifi of my router but 2.4GHz works fine

[LilRedDog]

@Dova

So I can't have the radio act as both client and AP?

You can but you need to learn travelmate.

Here is the support thread.

@Dova

So I can't have the radio act as both client and AP?

If 'the' is a pronoun for 'radio1', then no:
One radio is AP, one is STA.
You have one 2.4g radio and one 5g.