My favourite cafe occasionally changes the wi-fi password. I go to settings, wi-fi and sit there waiting while the iPad tries to log on, wait some more, it fails, tries again and keeps me waiting... Sooner or later but usually later it drops down the list for "Choose a network" so that I can go to the settings for the Bacio Dolce Cafe and tell it to forget. Sometimes it seems the coffee has gone cold. Then at last I can give it the new password, surely there's a better way?