I've just bought a laptop (Advent 5302, Windows Home Premium) and the wireless seems to be playing up. It connects to the router, stays connected but it loses the internet connection. It isn't the modem because the internet works on the other computer and there doesn't appear to be a problem with the router.

It's nothing to do with the distance because I'm less than 2 meters away from it (although there is a wall between). It was working perfectly well yesterday and the day before.

Any suggestions?

Thanks!