Fix slow connection (ubuntu 11.10 - Oneiric Ocelot)

If your wireless internet is damn slow after installing ubuntu 11.10,
here's one way to try and fix it:

This method involves forcing iwlagn to not use n, the commands will disable n on the device without making it a permanant change, check first if this work for you, if you notice that the speed improved then continue to make the change permanant. If this solution didn`t work for you, then reboot your computer to revert the chnages.


sudo rmmod -f iwlagn
sudo modprobe iwlagn 11n_disable=1


If you notice that the wifi speed improved, then make the change permanent :

gksudo gedit /etc/modprobe.d/iwlagn-disable11n.conf

and add this line to the file:

options iwlagn 11n_disable=1

save & quit

Important: The above method has been quoted from www.unixmen.com, a site that I've found very useful in the past. The method was the one that worked for me and hence why I want it here. To see the full original post that containts two other methods, please go to the Unixmen post that I am quoting from