slow internet after kernel upgrade

You recently upgraded your Linux kernel or changed your distro and Internet became suddenly slow ? You tried everything from disabling ipv6 support, MTU improvement to DNS tweaks ?

Generally the connection behaves normally for a few minutes and then speed dramatically decrease

Well if you’re using Wifi (especially an Atheros chipset), it’s probably a stupid module problem try typing:

sudo modprobe -r ath5k
sudo modprobe ath5k nohwcrypt

Now check if the connection is as fast as usual, if it’s OK, you can make this modification permanent using this command (tested with Ubuntu) :

sudo sh -c "echo 'options ath5k nohwcrypt' >/etc/modprobe.d/custom-wireless.conf"

Enjoy fast surfing!

howto: Speed up your Linux up to 10x

You’ve probably heard about the 200 lines kernel patch that makes wonders ? Well there’s an easier way to dramatically increase your Linux Distro reactiveness and obtain a similar result, I tested it and it’s really working , this is for Ubuntu:

“Script To Automatically Apply the “200 Lines Kernel Patch” Alternative In Ubuntu”

For other distros: