Freeradius is mad ! Or me...

Hi, I have a Freeradius on a fedora core 5 with a backend mysql. It's work fine 20 days. But i have stopped it (/etc/init.d.radiusd stop) and use radiusd -A commande for testing another login for mysql. An since this change the serveur radius can connect to serveur mysql on debug mode (rdiusd -X), if i use the command "/etc/init.d/radiusd start" the clients can't connect et in the log (see bottom) say it can't connect to mysql sevrer. Why the command "radiusd -A" work fine and not "/etc/init.d/raduisd start" ??? I really don't understand why ! I will be mad