1) Disconnect all the cables from your router and your ADSL modem
2) Reset your router by pressing the reset button for 20 seconds with a pin (not very pointed).You can locate it at the back. To see an image Router reset button The router must be plugged on during the process.
3) Connect the cable to port 1 of the router and the other end to the lan card of your computer.
4) Type www.routerlogin.net or http://192.168.1.1 or check the back of the router if any other ip is given
5) If you are still unable to get the login page then ur router has failed.