The problem seems to have gone away in vivid. I just installed Kubuntu 15.04, and the issue is not there anymore. The WIFI reconnects nicely after sleep/resume without any tricks. I haven't tested very many networks yet, though.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1354924 Title: Networkmanager does not autoconnect to wireless network To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1354924/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs