Further investigation reveals that this is an ndiswrapper bug, or a bug in the way ndiswrapper gets loaded. It's intermittent under 15 - I just got "lucky" a few times with that kernel. But if I modprobe -r ndiswrapper and then modprobe ndiswrapper, everything works again. I would try to debug with wpa_supplicant, if I happened to have any idea on how to configure that...
Further investigation reveals that this is an ndiswrapper bug, or a bug in the way ndiswrapper gets loaded. It's intermittent under 15 - I just got "lucky" a few times with that kernel. But if I modprobe -r ndiswrapper and then modprobe ndiswrapper, everything works again. I would try to debug with wpa_supplicant, if I happened to have any idea on how to configure that...