Problem with network map element (system uptime for multiple servers)

[MKU1986]

Hi all,

I'm new to this forum and hopefully someone could help me out.

When I try to create a new element (host group, system uptime) in my new created network map, the result is UNKNOWN.

I try to read multiple server system uptimes with the following code:

{HOST.NAME}
{HOST.NAME:system.uptime.last(0)}

I don't know what I do wrong.
When I create an element for one host with the code above, it works.

Thanks in advance for your help.

Mark