I have the same exact problem and it's an NM bug as pointed out by Thomas. This is closed related to https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/632896.
A new proposed network-manager package has just been uploaded to fix the problem. It works for me, so far.
I have the same exact problem and it's an NM bug as pointed out by Thomas. This is closed related to https:/ /bugs.launchpad .net/ubuntu/ +source/ network- manager/ +bug/632896.
A new proposed network-manager package has just been uploaded to fix the problem. It works for me, so far.