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wlan wep encryption is failing after system update (pacman -Syu)

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https://bbs.archlinux.org – Wep and ath9k has been buggy for me for a long time now - sometimes it works, sometimes it doesn't. Never got around it, adding "options ath9k nohwcrypt=1" into /etc/modprobe.d/ath9k.conf seemed to work for some time. You could give it a try. The network I have problems with is at the university, they use wep + vpn to connect. I can connect fine (like in your last iwconfig), but dhcpd times out. If you have control over the network, you could just switch to wpa - safer anyway. Or search the forum for "atheros wep", it is a somewhat common problem I think.P.S.: please u (HowTos)