Hello all, I'm using a hard drive installation of the latest Kali Linux distro, and a wireless card Alfa AWUS036H, which has a RTL8187 Realtek chipset. I'm having the following issue, whose I could not found anything about in this forum: Once I've started mon0 interface by "airmon-ng start wlan1", I try to sniff the network with "airodump-ng -c 10 mon0", for instance. It sniffs "something", but I'm pretty sure it does not behave correctly, since airodump's output prints at top right the message "fixed channel mon0: -1". I've read some posts from people who experimented the same issue. However, any of those solutions helped me. This is the first time I'm facing this kind of problem. I've worked with Backtrack 4, Backtrack 5, wifiway 2, etc. What's the problem with my card and Kali Linux? Thank you!