On Fri, Jan 15, 2010 at 02:46:19AM +0100, Peter Stuge
<peter-y+hmsxxd...@public.gmane.org> wrote:
> Do you have wpa_supplicant running also when not using encryption?
Nope.
> I have made some noise on the ath9k list about it, and currently have
> a reboot pending to try the latest wireless-testing, which has gotten
> some more fixes.
Please let me know if that helped (which git repo, which branch?).
> I upgraded from ipw2200 to ath9k in my laptop and the old card never
> had trouble. Both ath9k and b43 use mac80211 but ipw2200 does not.
> With mac80211 you're apparently supposed to always have wpa_supplicant
> running - even if not using encryption. The supplicant is responsible
> for reconnecting if the interface is disconnected for any reason.
>
> I'm not satisfied with this as the final answer yet. I find it
> suspicious that my card disconnects in the first place.
That does not seem to help here:
# wpa_supplicant -ieth0 -Dwext -c /etc/wpa_supplicant.conf -B
# iwconfig eth0 essid linksys
# iwconfig
lo no wireless extensions.
eth1 no wireless extensions.
eth0 IEEE 802.11bg Mode:Managed Access Point: Not-Associated
Tx-Power=27 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
Note that this is different from what I got when wpa_supplicant was not
running. The output after ~5sec was:
# iwconfig
lo no wireless extensions.
eth1 no wireless extensions.
eth0 IEEE 802.11bg ESSID:"linksys"
Mode:Managed Access Point: Not-Associated Tx-Power=27 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
What should the wpa_supplicant config include? Currently my config has
nothing about the unencrypted access point. It's like:
# cat /etc/wpa_supplicant.conf
ctrl_interface=/var/run/wpa_supplicant
network={
ssid="ap_with_wpa"
psk="secret"
}
Should I include a section for the "linksys" (which has no encryption)
AP as well? if yes, what should it look like? The same as the above,
just without the psk line?
> I am normally in a moderately silent RF environment, with not many
> APs. With power management enabled (iwconfig eth1 power on) I
> experience this issue within minutes. With PM disabled, it happens
> only every couple of days. This is on wireless-testing as of Dec 14.
> In a very tough RF environment such as a hacker conference the
> problem is much more pronounced and disconnects happen many times per
> day also with PM off.
>
>
> > Any ideas?
>
> Does iwconfig power off make a difference for you?
It seems to be already off, but when I run the command:
# iwconfig eth0 power off
Error for wireless request "Set Power Management" (8B2C) :
SET failed on device eth0 ; Operation not supported.
Please keep me in CC, I'm not subscribed. (Actually I am, but mail
delivery is disabled.)
Thanks!
PS: I sent this mail twice, look like the first got lost because I
forgot to replace the public.gmane.org addresses in the mail. If this is
not the case, sorry for the dupe.
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