Comment 241 for bug 836250

I am not using Ubuntu but I suffer this problem with my Asus Zenbook Prime (wireless is Intel Centrino Advanced-N 6235 (rev 24)). In short, either of the following two actions fix the network slowness.

1. Disable 11n capability via `modprobe iwlwifi 11n_disable=1` or the kernel boot option `iwlwifi.11n_disable=1`, depending on whether iwlwifi is a module or not. Everything else works great but you have to use 11g.

2. Disable power management via `iwconfig wlan0 power off` or the appropriate setting in a power management tool, laptop-mode tools, etc. With this option there are still many Tx excessive retries but 11n works otherwise.