Rs.initiate() and rs.reconfig() won't work

Ops and Admin Replication
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1

Hi mongoDB community,

Trying to replicate and running into strange problems. Cannot rs.initiate()

If trying to rs.initiate() one instance, it gives error it was started without replicatino enabled. Ok, I go and fix that, specifying replica set name. After that ir starts up as replicate set using "127.0.0.1:27017: and wont’ rs.initiate(), because already done it.

Trying to change “127.0.0.1:27017” to a domain name, because other instances are with domain names. I can connect to them all with Compass. Localhost and domains won’t mx.

rs.reconfig() won’t allow entering any IP addresses or domain names at all, issuing all sorts of errors, except 127.0.0.1

Any ideas?