RALUS on ReadyNas NVX

Hi,

I have a problem with my ReadyNAS. the RALUS for BackupExec doesn't work anymore. I can't see it in the favorites ressources in BE2010.
It disappeared just after a backup. I don't understand why.
IP address of the BE server in the NVX is correct. I have update the RALUS add on on the NAS with the Last Version but it's still the same.
I connect to the NAS with SSH in the ralus.cfg , IP address is correct.

I think it's a problem of "publishing" the Agent.

Thank you.

BE Server : 2008Server x64  - BE2010

NAS : ReadyNAS NVX 4000