Intel dual band wireless 7260 not working on Kali Linux

i have installed Kali-Linux in virtual box, but i am struggling to make my wifi work for almost 3-4 days. i have tried few things, out of which best options are listed below : https://askubuntu.com/questions/331667/no-wireless-for-intel-corporation-7260-version-63 https://askubuntu.com/questions/433539/intel-7260-works-during-installation-but-not-after-reboot But nothing is working for me, i cannot see my wifi card in iwconfig.