Client can't connect to server from internet

[netsonicyxf]

Server: Vault 2017 Pro

Client: Vault 2016

The client can connect to the server in local network, but it fails from internet.

The error message is

Fail to call web service on xxx.xxx.xxx.xxx

[Ron_Jones1122]

When this happens it's because the FQDN URL isn't being resolved to the internal IP address of the server.  Edit the Windows Hosts file which can be found here:

C:\Windows\System32\drivers\etc\

Then on a new line at the end of the file, press TAB, type the internal IP address of the server (by default its 127.0.0.1), then TAB again, followed by the FQDN URL.