users who are listed in /usr/local/etc/raddb/users cannot authenticate.

I have a number of users whom are listed in my /usr/local/etc/raddb/users file in this format: User1 password="4978" fall-through="1" user2 password="knjy500" fall-through="1" user3 password="8556" fall-through="1" user4 password="8556" fall-through="1" user5 password="rocky" fall-through="1" none of them are able to authenticate. These users are both listed in /usr/local/etc/raddb & in the local system's password file (for chap purposes) if I remove the listing from the users file they can authenticate via PAP. Thanks, -Drew