SSPR - Error 5016 unable to find user name

dear All,
I have installed SSPR and its integrated with E-directory as well as NAM. In SSPR login page when i give complete DN in Username field like cn=testuser1,ou=users,o=novell then i can able to login to SSPR and I can reset my password but when i only provide testuser1 in username then it is showing me above error, S

SPR Error 5016 unable to find the user name Help its urgent

thanks sarita:confused: