Problem with authentication

[Pablo Lucchetti]

Hi,

I've a Freeradius on a Debian Etch with Mysql but when I'm triying to 
test with NTRadPing always got the same error.
The user already exists in database


rad_recv: Access-Request packet from host 192.168.1.109:4027, id=2, 
length=49
        User-Name = "test-user"
        User-Password = "test-pass"
rlm_sql (sql): Reserving sql socket id: 4
rlm_sql (sql): SQL query error; rejecting user
rlm_sql (sql): Released sql socket id: 4
Sending Access-Reject of id 2 to 192.168.1.109 port 4027


Any help please?


Thanks in advance,
Pablo