How you come up with these numbers is.

Wi fi pre shared key. Changing an existing pre shared key. Uncheck the enable check box to allow the user to reenter the previous key when the current key expires. Wpa2 personal and wpa2 enterprise.

Gwn has a fairly clunky way of changing a psk for an existing ssid. It's typically utilized by telecom. When i hover over the wifi icon to connect to a wifi hotspot, it says wlan0:

Not associated (even after clicking the icon and selecting my wifi hotspot from among those found, and then. Select the button of “ show.