netcfg fails on boot, but works if restarted

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https://bbs.archlinux.org – netcfg used to work fine, but now I have to reconnect after a fresh boot.$ netcfg -r wlan0 > Profile not connected :: wlan0 up [BUSY] ctrl_iface exists and seems to be in use - cannot override it Delete '/run/wpa_supplicant/wlan0' manually if it is not used anymore Failed to initialize control interface '/run/wpa_supplicant'. You may have another wpa_supplicant process already running or the file was left by an unclean termination of wpa_supplicant in which case you will need to manually rem (HowTos)