Comment 2 for bug 368496

I also see this happening sometimes, also in Lucid/Maverick. Occasionally (not always), right after a reboot, I can't access anything on the network, and "/etc/init.d/guarddog restart" solves the problem, as does opening guarddog and simply clicking Apply and closing it. Since it's inconsistent, maybe it's some race condition with other startup scripts? Just a guess...