[arch-general] Atheros WiFi only working after reboot from windows

[Lukáš Jirkovský]

On 26 July 2011 09:19, Vic Demuzere <vic at demuzere.be> wrote:
> Hi there,
>
> I have a really strange issue with my Atheros WiFi card since
> re-installing Arch. It doesn't manage to connect to my wireless AP,
> except when I first boot windows and then reboot to Arch. So it looks
> like Arch doesn't manage to start the card properly. Output from dmesg
> is the same in both cases, and the card correctly shows up in lspci.
>
> [sorcix at morpheus ~]$ dmesg | grep ath
> ath9k 0000:01:0b.0: PCI INT A -> Link[APC3] -> GSI 18 (level, low) -> IRQ 18
> ath: EEPROM regdomain: 0x30
> ath: EEPROM indicates we should expect a direct regpair map
> ath: Country alpha2 being used: AM
> ath: Regpair used: 0x30
> ieee80211 phy0: Selected rate control algorithm 'ath9k_rate_control'
> Registered led device: ath9k-phy0
>
> I tried netcfg, networkmanager and manually using wpa_supplicant. When
> I didn't boot windows first, the card seems to connect to the AP, and
> then disconnect again.
>
> wlan0: deauthenticating from xx:xx:xx:xx:xx:xx by local choice (reason=3)
>
> It then starts looping trying to reconnect.
>
> After first booting into windows, it simply connects and stays
> connected. Everything works fine then. Note that it always works fine
> in windows, so it isn't a hardware problem.
>
> Does anyone else have this problem, or knows how to fix it?
>
> --
> vic at demuzere.be :: http://vic.demuzere.be :: PGP: 0x6690CF94
> My software never contains bugs, it just develops random features.
>

You could try playing with rfkill a bit.