One of the nagging problems with my Arch installation that I have been too lazy to figure out till now, is that on every reboot, I have to enable my wireless (turning WIFI on) by pression Fn+F5 (on my Lenovo Y410P). This is equivallent of executing “rfkill unblock all”.
The problem, according to this is a Kernel bug since v3.9. A quick fix is
systemctl enable firstname.lastname@example.org