xo-server 5.53.0
xo-web 5.53.3

Hoping to get an answer as to why I cant add a XCP-ng 7.6 server to XO Free version?

• Trying to add a remote server via VPN

• I can ssh to it without issue

• I have added it to XCP-ng Center 7.6 without issue

• I used the following to add the server
  IP address of server
  root username and password
  toggled "Unauthorized Certificates"

However I get the little red triangle stating connection failed.
Log info below. TIA

server.enable
{
  "id": "fd4ff6b9-21f3-431e-9c27-aca34f87e017"
}
{
  "errno": "ETIMEDOUT",
  "code": "ETIMEDOUT",
  "syscall": "connect",
  "address": "192.168.16.242",
  "port": 443,
  "url": "https://192.168.16.242/jsonrpc",
  "call": {
    "method": "session.login_with_password",
    "params": [
      "root",
      "NotTheActualPassword"
    ]
  },
  "message": "connect ETIMEDOUT 192.168.16.242:443",
  "name": "Error",
  "stack": "Error: connect ETIMEDOUT 192.168.16.242:443
    at TCPConnectWrap.afterConnect [as oncomplete] (net.js:1191:14)"
}