We have several problems using zabbix-proxy between AWS and local data centers.

The zabbix-server stop to see the zabbix-proxy for no reason, sometimes for more than 1 hour!

While this problems happen, I tested using telnet the connection between server proxy on port 10051 and everything looks normally.

Also, I increased the log of pollers, no error apparently…

All proxies are in passive mode

We changed the zabbix environment on the last days to try resolve, and now the server is on aws-spo and one proxy on aws-vir. Now we have one more proxy on virginia and the problem is worse