Message from [zabixproxy.sample.org] is missing header. Message ignored.

[gabrielglusgold]

Hi, I cant connect windows agent to proxy zabbix:

first error message in Agent log is:

Message from [zabixproxy.sample.org] is missing header. Message ignored.

agent configuration is for active check
both zabbix version at windows agent and zabbix agent are 5.2.6.

note: zabixproxy.sample.org is an invented fqdn name.

port communication to proxy zabbix server from agent seems to be ok. (I have tested with nmap for windows)

Please help. let me know
Thanks in advance

[gabrielglusgold]

After some tests and change zabbix proxy network configuration, problem is solved. Even thought there is some requirements that it seems to be documented:
A reverse proxy network configuration (for avoiding an exclusive public IP for zabbix proxy) dont work for active checks. Zabbix Proxy network configuration only works with an exclusive ip public address using NAT

If somebody know why? please let me know.

Thanks in advance