Can't login to my dlink web interface?

Well I have a Comtrend CT-5621 Router which I guess is bundled with a dlink router? Idk. But either way when I go to the web interface it says Dlink web interface login. I tried using the user id: admin, and leaving the pword blank. I tried using the user id: admin and using the pword: admin. Nothing works. I've seen several topics on this but can't find what I'm looking for. I can't login to my web interface to change the settings, and I have no idea what th actual username/pword is, as I've never used it before. I need to login to find my name servers in order to setup a static ip address to port forward for utorrent. Can anyone help me with this?