Re: problems with madwifi and Atheros AR5418
Hello All, red this article it might be helpful:
http://ronymattar.com/blog/?p=10 http://ronymattar.com/blog/?p=10
Manuel Pégourié-Gonnard-2 wrote:
>
> Hi all,
>
> My new laptop (asus F80L-4P007C) comes with an Atheros AR5418 wifi
> chipset,
> which apparently doesn't work well with madwifi from current Lenny. This
> chipset is reported to work with madwifi at:
>
> http://madwifi.org/wiki/Compatibility/Atheros#AtherosAR5418
>
> I have packet loss varying form 0% to 85%, even pinging my local gateway
> (which is also the wifi AP). The only other abnormal things I noticed are
> the message
>
> wifi0: unknow hardware address type 801
>
> issued (two times) when I ran 'dhclient ath0' (after configuring the card
> with iwconfig and bringing it up with ifconfig).
>
> Now, after some time using it, I have:
>
> mpg@roth:~% /sbin/iwconfig ath0
> ath0 IEEE 802.11g ESSID:"freeboite" Nickname:""
> Mode:Managed Frequency:2.412 GHz Access Point:
> 96:8C:04:33:F8:1C
> Bit Rate:48 Mb/s Tx-Power:14 dBm Sensitivity=1/1
> Retry:off RTS thr:off Fragment thr:off
> Power Management:off
> Link Quality=65/70 Signal level=-31 dBm Noise level=-96 dBm
> Rx invalid nwid:47937 Rx invalid crypt:0 Rx invalid frag:0
> Tx excessive retries:0 Invalid misc:0 Missed beacon:0
>
> I notice that 'Rx invalid nwid' is non-zero, but don't know how to use
> this
> information.
>
> What can I do in order to debug or work around this problem?
>
> For now the options I can see are:
> 1. Use a more recent madwifi snapshot.
> 2. Try a 2.6.27 kernel with the new ath9k driver which is supposed to
> handle
> my chipset.
> 3. Use the win32 driver via ndiswrapper. I don't like this option at all,
> it
> also forces me to re-install everything in 32bits...
>
> Any sensible advice greatly welcome! I include some info which my be
> useful,
> feel free to ask more if I forgot something important.
>
> TIA,
> Manuel.
>
> mpg@roth:~% lspci | grep -i wireless
> 02:00.0 Network controller: Atheros Communications Inc. AR5418 802.11abgn
> Wireless PCI Express Adapter (rev 01)
> mpg@roth:~% lspci -v -s 02:00.0
> 02:00.0 Network controller: Atheros Communications Inc. AR5418 802.11abgn
> Wireless PCI Express Adapter (rev 01)
> Subsystem: Atheros Communications Inc. Device 3072
> Flags: bus master, fast devsel, latency 0, IRQ 17
> Memory at fdef0000 (64-bit, non-prefetchable) [size=64K]
> Capabilities: <access denied>
> Kernel driver in use: ath_pci
> Kernel modules: ath_pci, ath5k
> roth:~# lsmod G 'ath|wlan'
> wlan_wep 9984 1
> wlan_scan_sta 17280 1
> ath_rate_sample 17024 1
> ath_pci 241600 0
> wlan 223904 5
> wlan_wep,wlan_scan_sta,ath_rate_sample,ath_pci
> ath_hal 334480 3 ath_rate_sample,ath_pci
> mpg@roth:~% uname -a
> Linux roth 2.6.26-1-amd64 #1 SMP Wed Aug 20 12:09:32 UTC 2008 x86_64
> GNU/Linux
>
>
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