Make wireless work with Ultrabooks with ath9k+bluetooth

[mickey999inbox]

Hello,
Might be useful for those Linux Mint 13 users that bought an Ultrabook (Asus, Toshiba, Dell, etc)
These ultrabooks ( most of them ) will come with this ATH9K + bluetooth wifi netcard.
Under Linux Mint 13 (Mate at least !) your wifi card will connect to your wireless router but the speed will be outrageous low ( 52K ...maybe!)
All you have to do is the following:
1. sudo su -
2. create a file name ath9k.conf under /etc/modprobe.d (touch /etc/modprobe.d/ath9k.conf - for example )
3. nano /etc/modprobe.d/ath9k.conf and introduce one line containing the following:

options ath9k nohwcrypt=1

4.Save the file
5.Issue the following commands to remove then reload the modules properly without rebooting your system:

rmmod ath9k
modprobe -b ath9k

Now you should have the proper Internet speed .

As for the bluetooth ( if you have a bluetooth headset you'd like to use with your Ultrabook ) you will need to use Synaptics and install Bluez manager with some more extra libraries in order to be able to connect your bluetooth headset to your Ultrabook

[mtc666]

Thanks. I've been looking for hours for a solution for my ASUS U36JC. This is perfect.

[Oscar799]

Title edited to make it clear it's a guide and thread moved here

[dwarbin]

Thanks for the post. I've been having an issue with Dell Inspiron wifi on Mint 15 Olivia. I could see multiple wireless connections, but could connect to none. Whether the network used WEP, WPA or no security made no difference.

I am using an Atheros card and the ath9k driver. After reading your post and replies, I found the /etc/modprobe.d/ath9k.conf file missing. Adding it as specified corrected the issue. Thanks for the help.