I have the BT Voyager 210 router, and have connected using the USB socket that it has. http://www.voyager.bt.com/wired_routers/voyager_210/product_info.htm
We don't know that the router is wireless capable and, in any case, some router admin tasks cannot be done reliably over wireless (and, if possible, wireless admin access should be disabled for security reasons).Alternatively you can go wireless and get a USB wireless adaptor for your PC.