Ubuntu 10.04 Lucid Lynx Network WiFi slow speed

[JohnDoe365]

A lot of people have the problem to find themselves with Lucid Lynx 10.04 and experience massive issues when connecting to wireless - me too.

As a service, here some relevant links which promise relief:

Disable IPv6
http://www.webupd8.org/2010/05/how-t...untu-1004.html
Disable IPv6 in firefox
http://ubuntuforums.org/showthread.p...t=disable+ipv6
manually disable auto bandwith mediation of WiFi
sudo iwconfig wlan0 rate 54M
(replace wlan0 with your actual WiFi device)
Disable 802.11n on your router

I tried all of them, and none reliably worked. Every solution which required re-association wtih the AP helped for some time, but nothing helped for long.
First, don't let yourself fool by the disable IPv6 trap - while it is "enabled" it is acutally not used by Lucid!

I have a clean install of Kubuntu 10.04 on an AMD64 Laptop with Broadcom STA driver:
03:00.0 Network controller: Broadcom Corporation BCM4328 802.11a/b/g/n (rev 03)

However I can reliably stabilize my connection for some time either by manually disabling WiFi with the hardware switch or disabling WiFi by software means and re-activating. This brings speed at par with Kubuntu 9.10 until some time.

Can anybody confirm this behaviour?

I already filed a bug @ launchpad: https://bugs.launchpad.net/ubuntu/+s...wl/+bug/581936

[erictm]

I have the same issue on my Macbook 3,1. I already have slow internet at my location and when I attempt to load a webpage it literally takes 15 minutes or more. I switched back to OSX to confirm that the internet was simply being slow, but I'm able to load webpages far more quickly.

[ashwinhgtx]

Same problem here.

[lgalicki]

Hey guys!

I'm also experiencing the same problem, but I'm still using 9.10. My internet connection is 10 Mb/s, and the max speed I've got during the bursts of speed I experience when I restart the wireless connection was around 4 Mb/s. Then things start to go downhill until the bottom is hit and it goes as fast as 0.5 Mb/s.

If anyone find out the fix, do not forget to post it here for us!

PS.: Wired connection is ok and my PS3 downloads at max speed using wireless connection.

Regards!

[LeChuck]

Exactly the same behaviour here. Have been away for some days without problems, but for some mysterious reasons I recognize wlan slowed down in lucid.

I remember having a similar problem when upgrading to karmic, but could solve it by using the opendns server. But as they're still in use it must be something else.

[nDrewPJ]

I've openned a ticket both in Launchpad for Ubuntu 10.04 and in the bugtracker for Archlinux because it seems that this is a kernel(wifi driver) issues.

I have also opnned a bug ticket. Going to merge it with JohnDoe365's

(https://bugs.launchpad.net/ubuntu/+bug/587454)

[jamaisvu]

I believe this is related to this bug. The wading-through-treacle behavior only seems to happen with WPA -- it's fine with WEP in my experience. The solution in the 35th reply to that bug -- viz replacing wpasupplicant and two libs with the versions from Debian Sid -- should do the trick.

[cincinnatus13]

@jamaisvu
I tried that and it didn't seem to work. I am running a Realtek card but that didn't help at all after rebooting. I can't even get to the point of installing wicd, which seemed to help somewhat on my other comp (Tosh Satellite with XP and a Realtek card as well.)

[madnux]

Same here on a PC in my office.

[moodle]

I believe this is related to this bug. The wading-through-treacle behavior only seems to happen with WPA -- it's fine with WEP in my experience. The solution in the 35th reply to that bug -- viz replacing wpasupplicant and two libs with the versions from Debian Sid -- should do the trick.

This didn't work for me. My wireless is still painfully slow loading most webpages.