First: if something does not work there is generally an error message. Post the exact error message else it is impossible to tell, what the problem could be.
Second: I did not give any id. What id are you talking about? When connecting, the user name remains empty and you have to enter the password for the router configuration. The factory default password should be "admin". You should have changed that password during first setup of the router. This password has nothing to do with the wireless encryption keys.
If the password does not work or you don't remember it anymore, you'll have to reset the router to factory default: press the reset button for 30 seconds. You then have to setup the whole router again.