> Solved the wpa_supplicant "No Such Device" problem on my system. > Change "allow-hotplug" to "auto" of wireless device stanza > in /etc/network/interfaces. But now wpa_supplicant fails to > authenticate. However, wireless dongle (Rosewill RNX-N180UBEv3) will > connect with security turned off on router and interfaces appropriately > configured.
My guess is that it's a problem in the driver (i.e. in the kernel) rather than a problem higher-up in the stack. IOW there's not much Debian can do about it. You can find the name of your device driver with something like: ls -l /sys/class/net/wlan0/device/driver/module [ Replace `wlan0` with the actual name of your wireless device as it appears in `ifconfig` and friends. ] Stefan