1. Installed ZOS.
2. Using YZD latest version.

Problem 1 :

The local users / LAN are connected to ZOS through a 192.168.0.xx IP address and are able to work with ZOS.

My static IP given to the internet router is 121.247.150.xx. The router at this point has been configured to point the appropriate port 80 on the ZOS server.

However, when i give the same static IP as my incoming server for setting up an account (zimbra accont) in YZD the error displayed is shown below.

"Timeout when connecting to "". Please check host/port and network connectivity."

What are we doing wrong? Can you help?