Slow Wireless Network Connection
Niko Lewman
ubuntu at webbitakomo.fi
Sun May 15 08:08:38 UTC 2005
Ropetin Again kirjoitti viestissään (lähetysaika sunnuntai, 15. toukokuuta 2005 03:36):
> Good afternoon all, I've come across a small problem with my Ubuntu
> install that I would love to be able to fix.
>
> I'm using a Dell Laptop, Inspiron 9200, and the installation of Hoary
> went perfectly. Its detected my Internal Intel PRO/Wireless 2200BG and
> its working very well, apart from one thing. I dual boot the machine
> with Win XP and file transfer across the WLAN takes, give or take, 3
> times as long in Linux.
>
> Does anyone have any suggestion as to what might be going on? I have
> zero WLAN experience in Linux so I'm kind of lost.
>
> Ropetin.
Hi
You need to check your /etc/network/interfaces, sometimes for G-cards you need to establish the transfer rate manually.
To setup networking.
Edit your /etc/network/interfaces and add for example
auto wlan0
iface wlan0 inet dhcp
wireless_mode managed
wireless_channel CHANNEL
wireless_essid ESSID
wireless_rate 11M
I guess this is what you need to do. This set up fetches all required networking settings by DHCP. Adjust it to your needs, especially CHANNEL and ESSID. The wireless_ stanzas are not required but I suggest you set them especially when having problems with speed or connectivity.
You can set "any" for ESSID to have many drivers connect to the "most appropriate" access point in range.
"auto wlan0" instructs the networking system to bring the device up at boot time. You can omit the line and add "wlan0" to any existing auto stanza. (or whatever applies to your configuration, use iwconfig to find out)
Details:
wireless_mode managed Access point mode. Any in range is a possible connection candidate.
wireless_mode ad-hoc Any peer in range is a possible connection candidate, i.e. there is no need for an access point
wireless_channel Set the frequency channel. Possible values (in Europe) are 1-12.
wireless_essid Limit all available connection candidates to the ones matching your essid. You can permanently set your link to the peer matching this string.
wireless_rate Lock the transmission bitrate to 1M, 2M, 5.5M, 11M, 22M, auto. Only works if supported by the device.
I hope this helps
--
Niko Lewman
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