I've spent way too much time trying to find answers to this so I'm posting the question on here. I am working with Virtualbox Version 4.2.22 r91556 and I am running Kali Linux as one of my virtual machines. I'm trying to get my TP-Link TL-WN722N wifi USB adapter to work inside of my virtual machine, but I keep getting "no wireless extensions" when I run "iwconfig" in the terminal. I've messed around with the settings over and over and can't seem to get the thing to work no matter what I try. Can someone who knows what they are doing please walk me through this and make sure I have all of the settings correct and what not? I'd greatly appreciate it.