Frederic Boone wrote:
> I'm sending this email without cable, Thanks!
> I'm not sure to understand what happened...
> I moved my computer by ~1 meter and it worked.
> Then noise still equals the signal but they are now at -47 dBm.
> Also the connection seems to be unstable and sometimes the iwlist 
> comment doesn't find anything.
> Other people in the same room receive the wifi with 5/5 quality.
> Could this be a hardware problem?


I just checked this on a laptop which has a ipw3945 card.
Indeed the signal level is equal to the noise level. So I would say that the value of the 
noise level is useless for the ipw3945.

But the "Link Quality" seems to be a real value. In your case you have 51/100, which 
should be ok. I have 61/100 and in my case the connection seems to be stable.

Has somebody else problem with ipw3945 on SL5?

I will check if we can update the ipw3945 driver in SL5.

To exclude a hardware problem, do you have by chance Windows installed on this Laptop? 
Sorry for this suggestion ;-)


Urs




> 
> Thanks again
> fg
> 
> 
> Beyerle Urs a écrit :
>> Frederic Boone wrote:
>>> Thanks for the quick answer
>>>> Do you see your access point, if you do a scan?
>>>>
>>>> # iwlist eth1 scan
>>>
>>> Yes! I got:
>>>
>>> # /sbin/iwlist eth1 scan
>>> eth1      Scan completed :
>>>          Cell 01 - Address: 00:00:00:B5:FB:00
>>>                    ESSID:"observatoire-portail"
>>>                    Protocol:IEEE 802.11bg
>>>                    Mode:Master
>>>                    Channel:9
>>>                    Encryption key:off
>>>                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 6 Mb/s; 9 Mb/s
>>>                              11 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s
>>>                              48 Mb/s; 54 Mb/s
>>>                    Quality=51/100  Signal level=-78 dBm  Noise 
>>> level=-78 dBm
>>
>>
>> Your "Signal level" is equal your "Noise level"? Which is not really 
>> good.
>> Can you move closer to your access point?
>>
>>
>>
>>
>>>                    Extra: Last beacon: 11192ms ago
>>>>
>>>> If yes, for example use "system-config-network" to configure your 
>>>> wireless settings.
>>>
>>> So I set the mode to Master and channel to 9 but then I get:
>>> "Error for wireless request "Set Mode" (8B06) :
>>>    SET failed on device eth1 ; Invalid argument."
>>> "Définition des informations IP pour eth1. échoué. Aucun lien n'a été 
>>> trouvé. Vérifier le câble ?"
>>>
>>> Do you know why?
>>
>>
>> Please try
>> Mode: Managed  (!)
>> Network name (SSID): Specified: observatoire-portail
>> Key "empty"
>>
>> # ifup eth1
>>
>> What shows
>>
>> # iwconfig eth1
>>
>>
>> Urs
>>
>>
>>
>>> Thanks a lot.
>>>
>>> fb
>>>
>>
>