Freeradius is unable to read NAS table in mysql db

Hi all. I'm pretty new with Freeradius, but it seems matching my targets :-) I set Freeradius with mysql server and Daloradius Management. After some troubles to install FR, it worked fine, at least as basical startup: i can authenticate remote users! For real it works if i use /raddb/clients.conf file, setting readclients = yes in /raddb/sql.conf. Once i set it to "no", autentication fails. I checked nas table structure and it's ok, the same as in /usr/local/etc/raddb/sql/mysql/nas.sql User are instead loaded fine from mysql users table. How could i solve it? Thanks in advance Here my configuration. Fedora Core 10 Freeradius 2.1.9 Daloradius 0.9-7 MySQL 5.0.88 Remote NAS: ZyXEL USG100 (2.21) Superataru --