Hi, I've installed wondershaper1.1a-4 as described in the doc /usr/share/doc/wondershaper/readme.Debian, and edited /etc/network/interfaces to auto wlan0 iface wlan0 inet static up /sbin/wondershaper wlan0 383 64 down /sbin/wondershaper remove wlan0 ... . ifdown wlan0 now tells me unregister_netdevice: waiting for wlan0 to become free. Usage count = 1 Any idea what may be wrong? Regards, Gery Mate -- sportember <sportember@mailbox.hu>