Lost airport password... reset not working

I forgot my password after not needing it for quite some time. I tried to do a reset by pressing the button and then making a new password but I keep getting error messages after verifying the new passwords. The error message was something that airport could not be configured.

Has anyone encountered this before?

 

It wasn't there.

All of a sudden this thing stopped working and I know I'm entering the correct password because I ended up finding where I wrote it down. I tried again to reset and enter new passwords but I keep getting some cannot be configured error.