No wireless with Intel Centrino Advanced-N 7260

Further research, primarily here, suggests that simply loading the firmware will be ineffective. http://forum.notebookreview.com/networking-wireless/716325-intel-7260-a-6.html

I suggest you download this to your desktop: http://www.kernel.org/pub/linux/kernel/projects/backports/stable/v3.11-rc3/backports-3.11-rc3-1.tar.bz2 Right-click it and select 'Extract Here.' Now open a terminal and do:

cd Desktop/backports-3.11-rc3-1/
make defconfig-iwlwifi
make
sudo make install

Now reboot and tell us if your wireless is working.

I tested in Ubuntu 13.04 and it compiles perfectly and correctly drives my Intel 6200, but I don't have a 7260 so I can't test further. Fingers crossed! You definitely need the firmware.

Although you didn't confirm it from dmesg, it appears you need and lack the required firmware. Here is a link from my Dropbox: https://dl.dropboxusercontent.com/u/58267392/iwlwifi-7260-7.ucode.zip Please download it to your desktop. Right-click and select 'Extract Here.' Now open a terminal and do:

sudo cp Desktop/iwlwifi-7260-7.ucode /lib/firmware/
sudo modprobe -r iwlwifi
sudo modprobe iwlwifi

Do you have a wireless interface now?

iwconfig

Does it connect? Are there any informative messages here?

dmesg | grep iwl