If I unplug the ethernet cable, then reboot to follow the same sequence of steps as above, the wifi connection connects perfectly as soon as I login.
So far I've had fairly random results when I plug the network cable back in, sometimes it looks like both interfaces are up but neither working, sometimes both can be pinged but no network services can be connected to. Sometimes nm-applet pops up a notification saying I'm connected to my wifi network but the tray icon goes back to the wired logo, and the wifi is clearly not working. I've not worked out the exact pattern for this yet.
If I unplug the ethernet cable, then reboot to follow the same sequence of steps as above, the wifi connection connects perfectly as soon as I login.
So far I've had fairly random results when I plug the network cable back in, sometimes it looks like both interfaces are up but neither working, sometimes both can be pinged but no network services can be connected to. Sometimes nm-applet pops up a notification saying I'm connected to my wifi network but the tray icon goes back to the wired logo, and the wifi is clearly not working. I've not worked out the exact pattern for this yet.