[ossec-list] Can't add agents

[Tutankamen]

Hello,

I have installed latest OSSEC and configured as server, however when I
launch the manage_agents tool I can't add any agent:

[r...@server1 ~]# /var/ossec/bin/manage_agents


****************************************
* OSSEC HIDS v2.5.1 Agent manager.     *
* The following options are available: *
****************************************
   (I)mport key from the server (I).
   (Q)uit.
Choose your action: I or Q:


Any hints?

Many thanks!!