Please see the following similar bug (duplicate?) for how I fixed it on my machines:
https://bugs.launchpad.net/ubuntu/+source/knetworkmanager/+bug/280978
Hope this helps someone...
Please see the following similar bug (duplicate?) for how I fixed it on my machines:
https:/ /bugs.launchpad .net/ubuntu/ +source/ knetworkmanager /+bug/280978
Hope this helps someone...