Comment 10 for bug 1446584

So the issue is that push-client is tracking NM's WirelessEnabled state, and that doesn't get properly updated on krillin/arale when you enable flight mode directly (as when that happens urfkill will use libhybris to disable the interface, making it to disappear completely). The same issue doesn't happen on mako.

To test, just run $ dbus-monitor --system "path='/org/freedesktop/NetworkManager'" and watch the WirelessEnabled changes.

As a workaround, if you first disable wifi and then enable flight mode, it will make push-client happy and nothing will wake up your device.

Reproduced that behavior with image 19 and 21.