Yes, I do use an ethernet connection. But I don't really see how this is related with my problem.
The problem that when I try to switch it off it restarts instead also happens when my laptop isn't conected to the internet anyhow..
My laptop is an Hp Pavilion dv 2830 Es with Windows Vista (Home Premium).
When I try to shut it down it doesn't work sometimes..instead it restarts and I have to shut down pushing the switching on/off button.