Iwlwifi kernel problem

Hey guys, I've checked for my Intel 7260 AC dual band wireless adapter if its able to inject and monitor and found out that it is able.
But when I try to check injection with command
aireplay-ng -9 wlan0mon

it says
21:21:49 Trying broadcast probe requests...
21:21:51 No Answer...
21:21:51 Found 1 AP

21:21:51 Trying directed probe requests...
21:21:51 **:**:**:**:**:** - channel: * - '*********'
21:21:57 0/30: 0%

So i guess there is a problem with driver but I when try to download the appropriate driver in this site http://www.intel.com/support/wireles.../CS-034398.htm
there are 2 options, which are for kernel
4.1+
4.2+

but my kernel is 4.0.0 (I checked this with uname -r)

What should I do?
Please help I'm a newbie who wants and is trying to learn Kali Linux so bad
Any help would be appreciated ^^