For all of you who also suffer from this bug - I am able to connect to wifi with the WICD network manager. https://help.ubuntu.com/community/WICD It might not be as fancy as plasma's network manager but it'll probably answer the needs of most of you install using sudo apt-get install wicd-gtk or sudo apt-get install wicd-kde
see more details in the link, note that you don't have to uninstall your current network manager, i.e., you can skip the sudo apt-get remove network-manager command -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1569674 Title: [Kubuntu] Fail to connect to wifi after a recent update To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1569674/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs