[ltp] No WLAN connection on Thinkpad X40

[morpheus]

There are two APs with the same essid "WLAN".  Maybe if you try setting
the MAC of the AP you want to connect?  Example:

iwconfig ath0 ap 00:0B:5F:D0:10:02

Also, you may want to join the madwifi mailing list...there are some
problems with the latest CVS drivers but there are also solutions if you
take time to look for them and apply patches...

-jr

On Tue, 2004-09-14 at 17:37, Maarten den Braber wrote:
> * John Locke <john@freelock.com> [040913 17:27]:
> 
> [ erratic iwconfig output ]
> > I had similar trouble after installing Madwifi from CVS last month. It 
> > had worked fine under the RPMs provided with Mandrake (but that version 
> > didn't resume from a suspend, or show the light).
> 
> [...]
> > This was what I was seeing, too. Sometimes it worked, sometimes not.
> > 
> > The solution, from the Madwifi list, was to set it to 802.11g mode, 
> > instead of auto:
> > 
> > [root@hunter john] # iwpriv ath0 mode 2
> > 
> > For some reason, the auto-switching mode doesn't seem to work, but if 
> > you tell it which mode to use, it works fine.
> 
> I've tried all different things but still no luck :-( The command you
> suggested does make it a bit more stable, because it only tries to
> search for networks at 2.4GHz.
> 
> In my search for a solution I only seem to have gone both forward and
> backward :-/. The output of 'iwlist ath0 scan' is no constant (it gives
> no errors anymore). I'm now at the university and am getting the
> following output:
> 
> vortex:/home/mdb# iwlist ath0 scan
> ath0      Scan completed :
>           Cell 01 - Address: 00:0B:5F:D0:10:02
>                     ESSID:"WLAN"
>                     Mode:Master
>                     Frequency:2.412GHz (Channel 1)
>                     Quality=19/94  Signal level=-76 dBm  Noise level=-95 dBm
>                     Encryption key:on
>                     Bit Rate:1Mb/s
>                     Bit Rate:2Mb/s
>                     Bit Rate:5Mb/s
>                     Bit Rate:11Mb/s
>                     Extra:bcn_int=100
> 
>           [...]
> 
>           Cell 06 - Address: 00:0B:5F:E2:45:1F
>                     ESSID:"WLAN"
>                     Mode:Master
>                     Frequency:2.462GHz (Channel 11)
>                     Quality=46/94  Signal level=-49 dBm  Noise level=-95 dBm
>                     Encryption key:on
>                     Bit Rate:1Mb/s
>                     Bit Rate:2Mb/s
>                     Bit Rate:5Mb/s
>                     Bit Rate:11Mb/s
>                     Extra:bcn_int=100
> 
> So there are six AP's in my area. Nice. I've set my ESSID to "WLAN" and
> now iwconfig is giving the following output:
> 
> ath0      IEEE 802.11b  ESSID:"WLAN"  
>           Mode:Managed  Frequency:2.427GHz  Access Point: FF:FF:FF:FF:FF:FF   
>           Bit Rate:1Mb/s   Tx-Power:50 dBm   Sensitivity=0/3  
>           Retry:off   RTS thr:off   Fragment thr:off
>           Encryption key:off
>           Power Management:off
>           Link Quality=18/94  Signal level=-77 dBm  Noise level=-95 dBm
>           Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
>           Tx excessive retries:0  Invalid misc:0   Missed beacon:0
> 
> Argh! Why doesn't it associate with an AP anymore?! This network also requires
> the use of xsupplicant, but it should first associate! I've had one try
> where it erraticly found an AP (some behaviour as before).
> 
> Can anybody give me *any* clue on where to search for a solution? I
> suspect it is a driver issue, but e.g. ndiswrapper with the original IBM
> driver also does not work (card works, but no connection). 
> 
> Any advice/clue/tip is welcome! Without wires is better :-)
> 
> thanks,
> Maarten
> -- 
> Als er niet is gelachen,
> was het niet serieus genoeg