my problem was not related to the driver but to an unresolved bug of knetworkmanager (network-manager-kde on Kubuntu), https://bugs.kde.org/show_bug.cgi?id=209673, which wrongly handles the certificate.
** Bug watch added: KDE Bug Tracking System #209673 http://bugs.kde.org/show_bug.cgi?id=209673 -- [MASTER 0.7 regression] atheros/madwifi and orinoco drivers not supported https://bugs.launchpad.net/bugs/259157 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
