You need to configure the router to work with your DSL service provider.
to log into your router, try using 192.168.2.1 type that into your web browser for the address, if you never logged into it before, use admin for login, and admin for password, if that does not work, you might need to use the reset button on the router to reset the settings, try that again, if that does not work, you will need to go to the manufacutre website and get the directions for you router on the login and password that comes with your router.
Once logged in, you will need to set up your router as type PPPoE, the standard for DSL connections. You should also have the user name and password given to you by the DSL provider, a service name might be required, but is rare. Do not change MTU setting unless instructed to do so by your provider..
any further help should be directed to your router manufacture webpage, and ISP for log in information.