server unreachable, but it functions OKE???

[stage]

I have the strangest problem, two servers avery time the same two have a notice “server unreachable” (the agentd test if the computer is reachable), not another one only this two server. This error go’s on and off, over 1800 alerts over one night is.

There’s no problem with these servers, they function as normal as they can, with no delay

Also gives the zabbix server it self an error that there are more then 5 processes waiting. But if I look with the command “top” then the processor never go’s over 50%, the process Mysql takes over 70% of the processor time (is this normal For mysql?)

So I think it is a problem of the zabbix server and not of the two servers.
I have read something about altering the Pollers/Trappers in the zabbix_server.conf. I have changed it to 30 but it give no different.

Haze any one an idée what is gowning wrong?

[stage]

NSclient++

Oke stupid of me, I forgot to op the firewall of the machines self and the line for nsclient++ was still in there.

What’s strange because it workt fine (It did end give me an error) for 2 weeks??

But now it I have fixit it, yesyesyes