Yes, the config file param matches with primary and I ran rs.initiate() command on primary only. The secondary does not acknowledge the replication but I can see the connection is established by the primary to the second node. I haven’t run any other command on secondary. I just run mogod instance with the configuration using mongod -f /path_to_conf. When I repeat the same process in my local environment there is no any errors and the replicaiton works just fine. But when I try the same steps in preprod environment I am stucked.