I have established that the little black box next to my comp is my router. The words "ADSL ROUTER" on the bottom gave it away. But how do I disconnect it? It is connected to my computer by a network cable, and it is then connected through a hole in the wall by a telephone cable. If I connect the hole in the wall to my (internal) modem, all I get is a dialup connection.
How do I disconnect my router? How is my router connected to my computer anyway? It isn't there in "my computer"! I can't find any reference to it in "My Network connections" either!