Resolve slow connexion when using wifi in ubuntu 13.10 Saucy Salamander , 13.04 and LinuxMint13

Updated-14/10/2013: If  after installing or upgrading to ubuntu 13.10 Saucy Salamander.   if you noticed a slow connexion when using the wifi, this is a simple solution. This solution works also for LinuxMint13 and above.

1- First MethodA second The first solution for the slow connexion issue can be by using the following :

Open terminal and enter the following command:



sudo -s gksu gedit /etc/modprobe.d/ath9k.conf

at the end of the file add this:

options ath9k nohwcrypt=1

Save an restart your OS.

If you still have the issue of slow connexion, then try instructions on step 2.

2- Second Method:

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

3- Third method to resolve the slow connexion issue: You need to disactivate IPv6, to do that, open terminal and enter the following commands:

echo "#disable ipv6" | sudo tee -a /etc/sysctl.conf echo "net.ipv6.conf.all.disable_ipv6 = 1" | sudo tee -a /etc/sysctl.conf echo "net.ipv6.conf.default.disable_ipv6 = 1" | sudo tee -a /etc/sysctl.conf echo "net.ipv6.conf.lo.disable_ipv6 = 1" | sudo tee -a /etc/sysctl.conf

Then restart your system.

Please report if the solution discribed in this post worked for you by commenting this post. Thanks for your help.

1 &2 Via | lffl