Just encountered this on a Lenovo laptop with the built in Intel WiFi, before I found this bug I discovered that if you bring the interface down change the mac address and bring it back up again before network manager starts, and then restart network manager some time after the user logs in, it will connect successfully... not sure why.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1320752 Title: MAC Spoofing / Cloning for WiFi is broken in Trusty 14.04 / 14.10 and all others including Mint 17 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1320752/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs