I just installed Arch Linux.
Wifi worked fine for me on installation but as soon as I rebooted, I received failure messages when trying to connect to my router. When trying to access my router through wifi-menu, I receive:
Job for netctl@wls1\x2d2WIRE740.service failed. See 'systemctl status netctl@wls1\x2d2WIRE740.service and journalctl -xn' for details.
systemctl status netctl@wls1\x2d2WIRE740.service says:
Loaded: loaded (/usr/lib/systemmd/system/netctl@.service; static) Active: inactive (dead) Docs: man:netctl.profile(5)
journalctl -xn says:
-- Unit netctl@wls1\x2d2WIRE740.service has begun starting up. Jan 01 06:40:43 termin01 network: Starting network profile 'wls1-2WIRE740' ... Jan 01 06:40:43 termin01 network: The interface of network profile 'wls1-2WIRE740' is already up Jan 01 06:40:43 termin01 systemd: netctl@wls1\x2d2WIRE740.service:main process exited. code=exited, status=1/FAILURE Jan 01 06:40:43 termin01 systemd: Failed to start Automatically generated profile by wifi-menu.