I have a wireless card (Alfa AWUS036H) that I use to test pens in my test network. Because of my recent interest in network hacking, I picked up this card and put it into monitor mode. It scanned networks well and received strong signals from neighboring networks, but when I disconnected it the next day or restarted my computer, it could not detect any networks with the command
airodump-ng wlan0mon wlan0mon is the interface of the card.
To get the card working again, I would need to reboot the virtual box, unplug the power, or even reboot my computer several times to make it work again. I do not know if it's a software or hardware problem. If this were a real situation, it would not be practicable in any way.
I am running Kali-Linux 2019.1 on Virtual-Box 5.2. My computer is running Windows 10.
Your help would be appreciated.