Slow wireless after upgrade to 11.4

I have an Acer Aspire 5920G laptop, which uses Intel® PRO/Wireless 3945ABG wireless card.

I upgraded from 11.3 to 11.4 using live upgrade and after the upgrade wireless internet became really slow. Now I’m back to 11.3.

I experienced the same problem with speed when I was choosing Linux distro - first I tried Fedora and Ubuntu and both had the same problem, but when I tried openSUSE 11.3 it worked fine. With 11.4 Network Manager showed that signal is at 100% and it connected to router with normal speed, but when I tried downloading a file I got 30kB/s max, while I used to get 1,1 MB/s with windows and 11.3. I also noticed that right after boot I got decent speed, but it only lasted for less than a couple of minutes.

Since 11.4 should have better or at least the same driver as 11.3, problem is probably with configuration, but I am using NetworkManager, so I have no idea what could be wrong. :\

Thanks for your help!

My Laptop is HP Compaq nc6400 with the same wireless card and exactly the same problem.:frowning:

I have this on my R61 but it seems fine

A complete shot in the dark:
Is IPV6 disabled? What are your TCP gates?

First, I apologize for late reply.

IPv6 is disabled, don’t know about TCP gates…where can I check it?

Could the problem be caused by some file(s), that are stored on /home? It’s just a guess, but when I installed 11.4 using DVD I chose “new installation”, formatted the partition for /home and wireless worked flawlessly, but after that I screwed up something and reinstalled 11.4 without formatting /home and now wireless is slow again.

Note that I am using linux for less than half a year so I’m not very familiar with configuring it.

In case someone is interested… I installed 11.4 again, and as expected, wireless was slow. Then I downloaded one of ucodes found here and tried to install it. YaST said that installing it is obsolete, but I installed it anyway. I am not sure what exactly I accomplished doing that, but wireless is working perfectly now. :slight_smile: