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To: gentoo-laptop@g.o
From: Jordi Molina <warp3r@...>
Subject: Re: WLAN Problems- need solution
Date: Mon, 18 Apr 2005 08:56:31 +0200
I'm not a guru setting up MadDriver, but at the physical layer I see
that you have:

Link Quality=16/94


This is _very_ low, normally I won't expect success in data
transmission with a quality below 50%.

I also see that you are connected at 36 MBps, this can be due to the
low quality in signal also.


I recommend you disabling the WEP encryption until you set up the
connection correctly, just to make things easier. Then you can also
try to:
- Fix the transmit rate in Atheros config file: try first to fix it to
11M and then check the link quality. Keep increasing it until you see
that the quality decreases
- If you're using dhcp ensure that you've obtained a valid ip from the server

That's all :)
Hope it helps you


cheers


On 4/18/05, Rob <rob@...> wrote:
> I decided to try to finally get WiFi working on my laptop.  My WiFi
> Cardbus card appears to lock onto my access point, but I can not ping
> the router at 192.168.1.1.  I am using a Netgear WG511T card.  It seems
> that no data is getting through.  I am using 128bit WEP.  Here are the
> relevant files or outputs.  I would appreciate any help.  Thanks!  Rob
> 
> lsmod output.  This looks normal to me.  I had to remove net_ath0 and
> put net_eth0 back in so I could send this post.
> 
> Module                  Size  Used by
> wlan_wep                7040  1
> pcmcia                 20496  2
> yenta_socket           21256  2
> rsrc_nonstatic         10240  1 yenta_socket
> snd_mixer_oss          19072  0
> snd_seq_oss            34048  0
> snd_seq_midi_event      7168  1 snd_seq_oss
> snd_seq                52624  4 snd_seq_oss,snd_seq_midi_event
> snd_seq_device          7948  2 snd_seq_oss,snd_seq
> snd_intel8x0           30144  0
> snd_ac97_codec         76536  1 snd_intel8x0
> snd_pcm                84356  2 snd_intel8x0,snd_ac97_codec
> snd_timer              22788  2 snd_seq,snd_pcm
> snd                    49380  8
> snd_mixer_oss,snd_seq_oss,snd_seq,snd_seq_device,snd_intel8x0,snd_ac97_codec,snd_pcm,snd_timer
> snd_page_alloc          8708  2 snd_intel8x0,snd_pcm
> usbcore               108152  1
> ath_pci                55200  0
> ath_rate_onoe           8200  1 ath_pci
> ath_hal               148048  2 ath_pci
> wlan                  110556  4 wlan_wep,ath_pci,ath_rate_onoe
> b44                    21508  0
> nvidia               3918748  10
> ------------------------------------------------------------
> Here is the output of iwconfig:
> 
> plip0     no wireless extensions.
> 
> lo        no wireless extensions.
> 
> eth0      no wireless extensions.
> 
> ath0      IEEE 802.11g  ESSID:"eden"  Nickname:"eden"
>            Mode:Managed  Frequency:2.462 GHz  Access Point:
> 00:0C:41:E2:EF:46
>            Bit Rate:36 Mb/s   Tx-Power:50 dBm   Sensitivity=0/3
>            Retry:off   RTS thr:off   Fragment thr:off
>            Encryption key:3574-3138-4997-8135-4734   Security
> mode:restricted  (I obscured the key)
>            Power Management:off
>            Link Quality=16/94  Signal level=-79 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
> -------------------------------------------------------------------------------------------
> Here is my wireless-opts file for the MadWiFi driver
> 
> # Wireless LAN adapter configuration
> #
> # Theory of operation :
> #
> # The script attempts to match a block of settings to the specific wireless
> # card inserted, the *first* block matching the card is used.
>   # The address format is "scheme,socket,instance,hwaddr", with * as a
> wildcard.
> # 'scheme' is the pcmcia scheme (set via 'cardctl scheme XXX').
> # 'hwaddr' is the unique MAC address identifier of the wireless card.
> # The MAC address is usually printed on the card, or can be found via
> ifconfig.
> # Some examples here use only half of the MAC address with a wildcard to
> # match a whole family of cards...
> #
> # All the Wireless specific configuration is done through the Wireless
> # Extensions, so we will just call 'iwconfig' with the right parameters
> # defined below.
> # Of course, you need to have iwconfig installled on your system.
> # To download iwconfig, or for more info on Wireless Extensions :
> #    http://www.hpl.hp.com/personal/Jean_Tourrilhes/Linux/Tools.html
> #
> # Note : you don't need to fill all parameters, leave them blank, in most
> # cases the driver will initialise itself with sane defaults values or
> # automatically figure out the value... And no drivers do support all
> # possible settings...
> #
> # If you make any mistakes, you'll get a cryptic message in the system
> # log.  You'll need to figure out on your own which parameter was wrong:
> #     cardmgr[310]: executing: './network start wvlan0'
> #     cardmgr[310]: + SIOCSIWMODE: Invalid argument
> # I've tried to give more troubleshooting help at :
> #    http://www.hpl.hp.com/personal/Jean_Tourrilhes/Linux/Tools.html#debug
> # In case of doubts, just check "/etc/pcmcia/wireless" for the gory
> details...
> #
> # Note also that this script will work only with the original Pcmcia
> scripts,
> # and not with the default Red Hat scripts. Send a bug report to Red Hat ;-)
> #
> # Finally, send comments and flames to me, Jean Tourrilhes <jt@...>
> #
> 
> case "$ADDRESS" in
> 
> # NOTE : Remove the following four lines to activate the samples below ...
> #--------- START SECTION TO REMOVE -----------
> *,*,*,*)
>      #INFO="Netgear"
>      # ESSID (extended network name) : My Network, any
>      ESSID="eden"
>      # NWID/Domain (cell identifier) : 89AB, 100, off
>      NWID=""
>      # Operation mode : Ad-Hoc, Managed, Master, Repeater, Secondary, auto
>      MODE="Managed"
>      # Frequency or channel : 1, 2, 3 (channel) ; 2.422G, 2.46G (frequency)
>      #FREQ=""
>      CHANNEL="11"
>      # Sensitivity (cell size + roaming speed) : 1, 2, 3 ; -70 (dBm)
>      SENS=""
>      # Bit rate : auto, 1M, 11M
>      RATE="auto"
>      # Encryption key : 4567-89AB-CD, s:password
>      KEY="s:inagodadavida"
>      #KEY="A624F7A5F944ABACA8B1166670"  (I obscured this again)
>      # RTS threshold : off, 500
>      RTS=""
>      # Fragmentation threshold : off, 1000
>      FRAG=""
>      # Other iwconfig parameters : power off, ap 01:23:45:67:89:AB
>      IWCONFIG="ap 00:0C:41:E2:EF:46"
>      # iwspy parameters : + 01:23:45:67:89:AB
>      IWSPY=""
>      # iwpriv parameters : set_port 2, set_histo 50 60
>      IWPRIV=""
>      ;;
> esac
> ----------------------------------------------------------------------------------
> Here is my modules-autoload.d file.  Again I had to add "b44" back in to
> send this email:
> 
> # /etc/modules.autoload.d/kernel-2.6:  kernel modules to load when
> system boots.
> # $Header:
> /home/cvsroot/gentoo-src/rc-scripts/etc/modules.autoload.d/kernel-2.6,v
> 1.1 2003/07/16 18:13:45 azarah Exp $
> #
> # Note that this file is for 2.6 kernels.
> #
> # Add the names of modules that you'd like to load when the system
> # starts into this file, one per line.  Comments begin with # and
> # are ignored.  Read man modules.autoload for additional details.
> 
> # For example:
> # 3c59x
> nvidia
> b44
> wlan
> ath_hal
> ath_pci
> --------------------------------------------------
> here is my conf.d/net file.  Again, had to switch in eth0 to send this
> email:
> 
> # This blank configuration will automatically use DHCP for any net.*
> # scripts in /etc/init.d.  To create a more complete configuration,
> # please review /etc/conf.d/net.example and save your configuration
> # in /etc/conf.d/net (this file :]!).
> #iface_ath0="dhcp"
> iface_eth0="dhcp"
> --------------------------------------------------
> Here is the syslog output for a net_ath0 attempt:
> 
> <snip>
> Apr 15 10:13:08 localhost kernel: wlan: 0.8.4.5 (EXPERIMENTAL)
> Apr 15 10:13:08 localhost kernel: ath_hal: 0.9.14.9 (AR5210, AR5211,
> AR5212, RF5111, RF5112, RF2413)
> Apr 15 10:13:08 localhost kernel: ath_rate_onoe: 1.0
> Apr 15 10:13:08 localhost kernel: ath_pci: 0.9.4.12 (EXPERIMENTAL)
> <snip>
> Apr 15 10:13:18 localhost kernel: Yenta: CardBus bridge found at
> 0000:02:01.0 [1028:016a]
> Apr 15 10:13:18 localhost kernel: Yenta: ISA IRQ mask 0x0458, PCI irq 11
> Apr 15 10:13:18 localhost kernel: Socket status: 30000020
> Apr 15 10:13:19 localhost kernel: PCI: Enabling device 0000:03:00.0
> (0000 -> 0002)
> Apr 15 10:13:19 localhost kernel: ACPI: PCI interrupt 0000:03:00.0[A] ->
> GSI 11 (level, low) -> IRQ 11
> Apr 15 10:13:19 localhost kernel: ath0: 11b rates: 1Mbps 2Mbps 5.5Mbps
> 11Mbps
> Apr 15 10:13:19 localhost kernel: ath0: 11g rates: 1Mbps 2Mbps 5.5Mbps
> 11Mbps 6Mbps 9Mbps
> Apr 15 10:13:19 localhost kernel: ath0: mac 5.6 phy 4.1 radio 4.6
> Apr 15 10:13:19 localhost kernel: ath0: 802.11 address: 00:09:5b:c8:1e:19
> Apr 15 10:13:19 localhost kernel: ath0: Use hw queue 0 for WME_AC_BE traffic
> Apr 15 10:13:19 localhost kernel: ath0: Use hw queue 1 for WME_AC_BK traffic
> Apr 15 10:13:19 localhost kernel: ath0: Use hw queue 2 for WME_AC_VI traffic
> Apr 15 10:13:19 localhost kernel: ath0: Use hw queue 3 for WME_AC_VO traffic
> Apr 15 10:13:19 localhost kernel: ath0: Atheros 5212: mem=0x40800000, irq=11
> Apr 15 10:13:19 localhost cardmgr[7478]: watching 1 socket
> <snip>
> 12Mbps 18Mbps 24Mbps 36Mbps 48Mbps 54Apr 15 10:13:25 localhost
> rc-scripts: Configuration not set for ath0 - assuming dhcp
> Apr 15 10:14:25 localhost dhcpcd[8976]: timed out waiting for a valid
> DHCP server responseMbps
> <snip>
> 
> --
> gentoo-laptop@g.o mailing list
> 
> 


-- 
     Jordi Molina Casas (warp3r)
       mail: warp3r@...
         www: www.warp3r.com

    If you're still sending mail to 
   warper@eresmas, please update your 
     address book, my current email 
          is warp3r@...

-- 
gentoo-laptop@g.o mailing list

Replies:
Re: WLAN Problems- need solution
-- Rob
References:
WLAN Problems- need solution
-- Rob
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