Can't add replica set to PRIMARY node

Ops and Admin Replication
,
20

Hi everyone,

Does someone have the answer to this question? I have the same problem and I fix “Connection refused” by ensuring that:

  • Can ping each other (open port ICMP inbound)
  • Same keyFile and chmod 400 (read-only)

But I still have error “stateStr” : “(not reachable/healthy)” and I check my mongod.log show error code 18 AuthenticationFailed. Details in the topic:
[MongoDB replicaSet error AuthenticationFailed (code 18)]

Many thanks!!