Does it work reliably for you? I’ve got a persistent problem that in about half (or a bit more) of the cases where I plug it in, connection will drop after ~45 seconds and then the only thing to revive it is to unplug and replug it. See: http://forum.nginx.org/read.php?31,107067 (you’ll also find scripts that I developed independently for the same workarounds you’re describing above).

Christian