This is a problem I've been having for a while.

Due to the way wpa2 works, you can't really know if you failed to authenticate or if the AP is not responding to your attempts.

Sometimes, when the signal goes weak enough (bad weather, electromagnetic interference, AP overheating, etc etc) the system thinks the network was disconnected. It tries to reconnect, but the AP doesn't reply, so it pops up a modal dialog asking for the password again - it thinks my password was wrong.

That's a bad thing. System modal dialogs should never spontaneously pop up. In that dialog, I already have my password saved, so I just click connect, and in most cases it makes the network work again, and sometimes if I do it fast enough my connections don't die and such.

If I'm already connected to a network (so we know the password works) there's no need to ask me for the password again, and especially not in a system modal dialog that distracts me from what I'm doing and grabs keyboard focus.

I know I'm not the only one who has this problem because several people have mentioned it in GUADEC.