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(Really sorry, I did not know in what section I had to put this bug)

For no reason my wifi connection slowed down. I had less than 1B/s. I
solved the issue by doing :


sudo rmmod iwlwifi


sudo modprobe iwlwifi 11n_disable=1

and to apply this after reboot I created /etc/modprobe.d/iwlwifi.conf
and add in it :

options iwlwifi 11n_disable=1

Like it's told here : http://forum.ubuntu-fr.org/viewtopic.php?id=941711



but I do not what theses commands exactly do. I had the same problem on Ubuntu 
12.04, maybe a problem in the kernel.

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New

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very slow wifi
https://bugs.launchpad.net/bugs/1049257
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