WPA Authentication/Association Failed

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https://bbs.archlinux.org – I'm also having issues with wifi on my X220.Intel Centrino Wireless-N 1000Currently, I'm using Gnome NetworkManager.wpa_supplicant and wicd are disabled.Ethernet works perfectly, but wifi connects sometimes, but disconnects intermittently and then reconnects.The dhcpcd service always fails despite restarting it, sometimes immediately, sometimes after trying to connect via wifi.dhcpcd.service - dhcpcd on all interfaces Loaded: loaded (/usr/lib/systemd/system/dhcpcd.service; enabled) Active: failed (Result: exit-code) since Tue 2013-01-22 23:30:14 PST; 4min 56s ago Process: 194 (HowTos)