I want to believe that you are right.Beside that, i'm on adsl for 1.5 months now. Maybe i just didn't noted this activitys from start (from the time i got adsl). Maybe working this way it's just normal.
I'm still a little suspicious but i hope you are right.
I assure you this is correct. If you see no activity at all, just the little monitors there but the screens are constantly black then there is a problem with your connection. But you will see these "blips" of activity from time to time. I am certain that you just never noticed.