Comment 6 for bug 360797

Finally I found a workaround:
setting manually the key in the options of the wireless connection and NOT when prompted automatically.

Here I have to set the key that gives me the iwconfig command when connected correctly and run as root, it's not the ASCII key but the key in hexadecimal.

In detail, to make things work again, I did:

-deleted the connection
-restart network manager, which attempt to connect but fails and prompt me for the key
-cancel the prompt
-manually set the key: right click on the applet->edit connections->wireless->edit the connection that fails
-on the security tab, replace the key with the hex value of the key
-apply the changes and try to connect again, this time it works!

I took a syslog when trying to connect after have deleted the connection, which is the step that fails to save the key, hope it can help.

I haven't tried with other driver since I was using Ubuntu 7.10, at that time I was using ndiswrapper and worker fine; b44 do not support my chipset, I have a 4318.
I may try with ndiswrapper or with the old bcm43xx or wl, which I never heard about, and see if it solves.