NBG6602

My router is not accepting the admin login default password. It is in the bottom of the device, and as you all can imagine it is '1234'. I get into myrouter via 'myrouter' and give numbers 1234 to the only (!) field there is and still the device is not accepting the password. 'password is incorrect please try again'. I am starting to suspect my sanity. What could be the reason? I did reset also once, by pressing the button. No effect.