Comment 29 for bug 273336

I have the same problem. When trying to connect to a hidden wlan using WPA2 and a 'short' (26 characters) alphanumeric password I cant connect. Network-manager keeps asking for the password (it seems it fails on authentication) and the password box gets filled with a 64 digit hex (which could be the passkey generated using the PSK and the SSID).

This did not happen before upgrading to Ubuntu 9.04. This does not happen if I change the wlan password to a 64 digit hex, in that case the password gets stored correctly and can (although some times it takes really long and a couple of retries) connect.

Workaround: I enter to password management, go to where the network's key is supposedly stored, and change the 64 digit hex to the original password I intended. I also took out network-manager's permission to write the password. This way it connects fine, so I assume the problem is a wrongfully storage of the wlan's PSK.