My wlan0 interface drops after a couple of secs

[Bernard mentink]

Hi All,

I have been using the HostAP driver with kismet in monitor mode, and 
every now and again the interface drops.
I.E ifconfig shows no wlan0, to fix I have to do an ifup wlan0, then it 
is fine.

It happens intermittantly, so am at a loss to debug it.

Cheers,
Bernie Mentink