Problems with zabbix agent, how to get data and fix the problem?

Question

Zabbix

Good afternoon,
there is such a problem, the server cannot get the agent status:

but receives other data:

on the server, the hosts are added like this:
192.168.1.100: 10050
in the conf file like this for the host:
Server=192.168.2.100
ServerActive=192.168.2.100
Hostname=host01
ListenPort=10051
LogFile=c:\zabbix\zabbix_agentd.log
LogFileSize=10
question:
1. why is the status of the Zabbix agent on host01 is unreachable for 5 minutes
hosts a lot, and on some icmp is closed,
then writes:
Packet filtered on ping,
but after all, the same status with open icmp