Steps to reproduce:

1. Install zabbix-agent2 on client from Host wizard
2. Finish set up
3. Connected to Zabbix Server on Cloud

Result:
System hung after 5mins, not really hung because if I use htop, it's still working as normal, but outside cannot execute any command, even Ctrl+C to stop command cannot run either. Can ping from outside but cannot SSH. 
I have 50 machines running but 1 of them get this error, the others 2 got CPU overload because of zabbix_agent2. It auto-creates new processes again and again, each process uses 100% of 1 CPU thread.
Expected:
Work normal