If you are using nginx for load balance of your web application, always the Session.RemoteAddress it will return 127.0.0.1. If you want to get the remote address, on the nginx configuration, add the following
proxy_set_header X-Real-IP $remote_addr;
and on Xojo call
Session.Header("X-Real-IP")
If there is another way, to get guest’s IP, please inform.