On Nov 23, 2007 4:21 PM, Rafael J. Wysocki <rjw@xxxxxxx> wrote:
> On Friday, 23 of November 2007, Johannes Berg wrote:
> >
>
> > > > > on certain APs, the internet works for a long time then stops, and I
> > > > > get authentication time outs, why? It usually works again if I reset
> > > > > the AP itself, which i should not have to do and don't have to if in
> > > > > XP....
> > > >
> > > > > wlan0: Initial auth_alg=0
> > > > > wlan0: authenticate with AP 00:0f:66:53:3e:24
> > > > > wlan0: authenticate with AP 00:0f:66:53:3e:24
> > > > > wlan0: authenticate with AP 00:0f:66:53:3e:24
> > > > > wlan0: authentication with AP 00:0f:66:53:3e:24 timed out
> > > >
> > > > Does it help to reload the b43 module? I think I have seen this problem
> > > > before but always associated it with suspend/resume rather than a long
> > > > time elapsing, I also thought it was due to bad power recalibration.
> > >
> > > It seems that I can reproduce something similar on demand with an SMC wireless
> > > router by moving my box sufficiently far away from it. :-)
> >
> > Well, yeah, that's expected though, you lose signal at some point. Not
> > expected is that it happens without moving anything. Unless the
> > calibration code is wrong which wouldn't really surprise me either.
>
> In my case, everything works just fine when the box is 6 meters away from the
> AP (including a thick wall in between), but when I move it another 5-6 meters
> away from the AP, things break down ...
>
> I'd expect it to work at longer distances, but well. :-)
>
> Greetings,
> Rafael
>
wlan0 IEEE 802.11g ESSID:"Network4Home"
Mode:Managed Frequency:2.437 GHz Access Point: 00:0F:66:53:3E:24
Bit Rate=1 Mb/s Tx-Power=27 dBm
Retry min limit:7 RTS thr:off Fragment thr=2352 B
Link Quality=68/100 Signal level=-58 dBm Noise level=-69 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
I'd say 68/100 is a good signal strength. I do use suspend/resume a
lot, but sometimes only a reboot of the laptop or the AP seems to get
it working normally again.
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