TP-LINK TL-WN721N wireless adapter [SOLVED]

Hardware Compatibility
21

OK, run these commands in sequence:

mkdir ~/Desktop/precise-kernel-3.4

then

cd ~/Desktop/precise-kernel-3.4

then

wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.4-precise/linux-headers-3.4.0-030400-generic_3.4.0-030400.201205210521_amd64.deb

then

wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.4-precise/linux-image-3.4.0-030400-generic_3.4.0-030400.201205210521_amd64.deb

then

wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.4-precise/linux-headers-3.4.0-030400_3.4.0-030400.201205210521_all.deb

then

sudo dpkg -i *.deb

Once that’s finished … REBOOT and post the output from:

uname -a

and check if the USB wireless adapter works … if not, unplug the tplink, replug the tplink and post the output from:

dmesg | tail -n 20
22

It works. Thanks.

23

You’re welcome :slight_smile:

You can safely delete the precise-kernel-3.4 folder on your desktop if you’'d like.

24

Hi, now I have a new problem. After upgrading the kernel to 3.4, the update manager asks to to update the kernel 3.2. What should I do? Thanks.

25

What’s the output from

uname -a

and if you click the “Check” button in update manager, is the 3.2 kernel still listed ?

This is Ubuntu 12.04 right ?

26
jiaweihuo@jiaweihuo-LIFEBOOK-LH772:~$ uname -a Linux jiaweihuo-LIFEBOOK-LH772 3.4.0-030400-generic #201205210521 SMP Mon May 21 09:22:02 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux
Ubuntu 12.04, yes.

The attachment is a sreenshot of update manager.

27

Just let it do the update … if when you reboot it boots into a 3.2 kernel and wireless is broken, you can reboot and select kernel 3.4 from the grub menu.

If necessary, let us know and we’ll set kernel 3.4 as the default kernel.

28

I do not use grub. But it selects kernel 3.4 by default.