I have this problem:
When I put my card (ralink2570) into monitor mode and start airsnort it will not collect any data.
I noticed that I first have to connect to a ap the normal way (iwconfig & dhcpcd) and after that is done I can put the device in monitor mode and THEN airsnort will collect data.
This will work in a homesituation (near my own ap which offcourse I know the key), but in a "wardrive"-situation whitout any open ap's I cannot get airsnort to work.
What am I doing wrong ?