On Saturday morning the internet connection at home suddenly stopped working. So we called Shanghai Telecom, and we were told that they would look into it and call us back. Well, by midnight we still did not get a call back, so we decided to call again. They forgot about it, but they would check right away. According to them nothing was wrong, so it was our fault. Nice to know of course, but it did not help much. So I started checking our equipment and that revealed that our router, that we got...