Tomas, unfortunately I don't think there's any easy way to find the IP of your connected devices through ThingWorx. Couple alternate ways would be run a wireshark trace on the server to see all incoming connections, or write your custom lua script on the EMS to retrieve the IP address. Also, I believe the localhost_access_log available under your Tomcat instillation/logs folder would display the IPs of connections and what requests they are sending to the platform.
