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Re: intel 4965agn 54Mbps on Linux but 130Mbps on Windows

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On Sun, Aug 24, 2008 at 2:50 PM, Chris <dchris@xxxxxxxxx> wrote:
>
> Could it come from the fact that the kernel in Ubuntu Hardy does not
> have CONFIG_NETDEVICES_MULTIQUEUE enabled ?
>
> I got this warning when I installed compat-wireless but I don't know
> if it is required to get 802.11n working.
>
Definitely CONFIG_NETDEVICES_MULTIQUEUE must be enabled.
HT rates are no reported in wireless-tools.

Regards
Tomas

>
> On 8/24/08, Chris <dchris@xxxxxxxxx> wrote:
> > Hi,
> >
> > I'm using compat-wireless-2008-08-06.tar.bz2 on Ubuntu Hardy (kernel
> > 2.6.24) for my intel 4965agn card in order to connect using 802.11n to
> > my router (TL-WR841N from TP-LINK).
> > Unfortunately, I'm only able to connect in 802.11g mode under Linux :
> > $ iwconfig wlan1
> > wlan1     IEEE 802.11abgn  ESSID:"chris"
> >           Mode:Managed  Frequency:2.437 GHz  Access Point: 00:1D:0F:33:7E:EC
> >           Bit Rate=54 Mb/s   Tx-Power=15 dBm
> >           Retry min limit:7   RTS thr:off   Fragment thr=2352 B
> >           Power Management:off
> >           Link Quality=100/100  Signal level:-30 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
> >
> > $ sudo iwlist wlan1 scan
> > wlan1     Scan completed :
> >           Cell 01 - Address: 00:1D:0F:33:7E:EC
> >                     ESSID:"chris"
> >                     Mode:Master
> >                     Channel:6
> >                     Frequency:2.437 GHz (Channel 6)
> >                     Quality=100/100  Signal level:-30 dBm  Noise level=-94
> > dBm
> >                     Encryption key:on
> >                     IE: IEEE 802.11i/WPA2 Version 1
> >                         Group Cipher : CCMP
> >                         Pairwise Ciphers (1) : CCMP
> >                         Authentication Suites (1) : PSK
> >                     IE: Unknown:
> > 2D1A4C1003FFFF000000000000000000000000000000000000000000
> >                     Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
> >                               9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s
> >                               48 Mb/s; 54 Mb/s
> >                     Extra:tsf=000000003aefe580
> >                     Extra: Last beacon: 12ms ago
> >
> > As you can see, no bit rate greater than 54Mbps is detected. I tried
> > under Windows with latest intel driver and it connects at 130Mbps.
> > Does the Linux driver support 802.11n? If so, do you have any
> > suggestion to make this work here? I will be happy to provide any
> > information you may require.
> >
> > In dmesg output, I simply get this:
> > [   95.465080] wlan1: authenticate with AP 00:1d:0f:33:7e:ec
> > [   95.467416] wlan1: authenticated
> > [   95.467421] wlan1: associate with AP 00:1d:0f:33:7e:ec
> > [   95.471491] wlan1: RX AssocResp from 00:1d:0f:33:7e:ec (capab=0x431
> > status=0 aid=1)
> > [   95.471496] wlan1: associated
> > [   95.471533] wlan1 (WE) : Wireless Event too big (314)
> >
> > Best regards,
> > Chris.
> >
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