Low WiFi rates (Hardy 64Bit, Intel Pro Wireless 3945)

Phil Bieber philbieber at gmail.com
Fri May 9 06:23:55 UTC 2008


On Thu, May 8, 2008 at 3:56 PM, Nils Kassube <kassube at gmx.net> wrote:
> Phil Bieber wrote:
>> On Sat, Apr 26, 2008 at 11:11 AM, Phil Bieber <philbieber at gmail.com>
> wrote:
>> >  Since I switched to Hardy, I had quite low WiFi rates, but it didn't
>> >  bother me as I was able to surf and load with ~70 - 100 Kbit/s. But
>> >  now it dropped down to 700KBit/s, so it cant be the surrounding
>> > setup.
>
> Sorry, what is your speed? It was 70-100 kbit/s and now it dropped(?!??)
> to 700 kbit/s? But whatever it is, even 700 kbit/s is really slow.
>
> Did you check that you are the only person using the WLAN channel? If
> there are others sharing your channel, the actual speed will be
> decreased. Furthermore, did you check that there aren't others in your
> neighbourhood using a nearby channel? For b/g networks there are only 3
> channels (I think 1, 6, 11) which can be used without interference to
> other channels. You can check the use of other channels with the command
>
> sudo iwlist wlan0 scan
>
>> >  The card is an Intel Pro Wireless 3945ABG inside a DELL Inspiron
>> > 640m.
>
> In a thread about another problem with the 3945 card on the ubuntu-de list
> someone recommended these commands:
>
> sudo apt-get install linux-backports-modules-hardy
> sudo rmmod iwl3945; sudo modprobe iwl3945
>
> I have no idea if that will help with a 64bit Hardy, but at least it is
> worth a try.
>
>
> Nils

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Hi!
I was able to download form the Internet with >= 700KBit/s. Then, with
the upgrade to Hardy my network connection dropped to =1000KB/s.

When I get home, I will check the channels and try to install the
backports, though I do think that I already have them installed.

Thanks alot, I will report back when I checked it out!

Cheers
Phil Bieber
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