Hello

I reported the issue on the github and found a workaround after a bit of code parsing : Unable to listen on 0.0.0.0:4317 when using "Poller initiated connection" · Issue #1759 · centreon/centreon-collect

basically if you want to use the mode “poller connects to the agent”, “poller iniated connection” 

there is a bug as the settings is stored in a registry key by the configuration tool, but that is not the same registry key used by the agent to check if it should listen or send.

the problem has a workaround easy to implement for testing on a windows machine : 

in that registry key :

HKEY_LOCAL_MACHINE\SOFTWARE\Centreon\CentreonMonitoringAgent

Create a new DWORD value : reverse_connection

with value 0 for mode “agent send to the poller”, or 1 for “poller initiated connecion” ( = agent listen on the tcp port 4317)