Hi @g.naveiras,
Did you manage to connect your Navio2 to WiFi?
Yes, you need to type network name which you see on the device.
WPA-PSK, in that case, includes WPA2-PSK, so you don’t need to change it
It’s not necessary to change it, you can leave it as is.
This is not an easy task, but you can check the forum, this question was previously discussed.