[ltp] Broken Wireless?

[Marco Ghirlanda]

Michael,
> if you don't already have a ath0 you'll have to run
>
> wlanconfig ath create wlandev wifi0 wlanmode sta
>
> to create you a ath0. then that is your wlan-card which should sow 
> wireless networks
>   
thanks for your answer, but I do have an ath0 (Debian Sid works 100% here)
but sudo iwconfig shows me something that makes me  think I have a problem:
ath0      IEEE 802.11g  ESSID:"ZyXEL G-570S"  Nickname:""
          Mode:Managed  Frequency:2.437 GHz  Access Point:
00:10:49:8E:70:80  
          Bit Rate:0 kb/s   Tx-Power:14 dBm   Sensitivity=0/3 
          Retry:off   RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:off
          Link Quality=0/94  Signal level=-97 dBm  Noise level=-97 dBm
          Rx invalid nwid:529  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0
The access point is that ZyXEL G-570S I don't really like and I disabled
all security settings to be sure it wasn't that problem, so now it's
kind of factory settings (resetted twice).
Why is my link signal so low? I had the motherboard replaced by IBM
about 6 months ago or more, could it be that the wifi atheros was
installed not correctly and with time something disconnected.
May I open the TP and change/remove it? Is it a difficult/dangerous
operation?

Thanks for answering,

Marco