Another way how this can be temporally fixed is by using Seahorse (Passwords and Encryption Keys). There you will find your passwords under the tab "passwords". After deleting them, network-manager could remember my password again. At least this is what happened to me. So the problem seems to be related with seahorse.
Another way how this can be temporally fixed is by using Seahorse (Passwords and Encryption Keys). There you will find your passwords under the tab "passwords". After deleting them, network-manager could remember my password again. At least this is what happened to me. So the problem seems to be related with seahorse.