If the default login/passwords don't work (they may have been changed by somebody else) then most modems have a reset button which will clear ALL settings in the modem (including the admin login/pwd).
Take a close look at your modem, there should be a hole where you stick a pen or a pin into to press the reset button.
I found this manual. It may or may not be useful.
http://www.westell.com/images/pdf/327w11_06_ug.pdf
No members have liked this post.