hosts availability status 'unknown"

[vexico]

Hi everybody,

I ever installed a zabbix's server before on a debian 5.0.3 with zabbix server 1.8.3. to monitor windows servers. The agent was installed and everythink was working perfectly.
Yesterday, i did the same install on another pc and i stuck...The installation of zabbix server was without problems, the agent on the servers ok, but the host availability is 'unknown" (grey, not green or red).

Anyone who have an idea is welcome!!!!

thanks in advance!!!

[vexico]

up please

someone who have an idea? Or get me the way to fix it?

Thanks!!!