The offline mobile application will connect with PowerServer for the first time it runs, therefore, make sure your iPad/iPhone can connect with PowerServer.
Check and make sure the Windows PC (where PowerServer is installed) and the iPad or iPhone connected to the same Wi-Fi router. To verify this, on the iPad or iPhone, open the Safari Web browser and type http://Server_IP:80/AEM. If AEM is launched successfully, it means that the PowerServer is properly installed and that the iPad or iPhone is able to connect to the Windows PC.
NOTE: Mobile Internet is supported by PowerServer Mobile. However, in order for the Appeon Workspace to connect to your PowerServer you will need an external IP address. You can verify that your external IP address is properly working by typing http://External_IP_Address:80 into a Web browser of any device connected to the Internet. If you get a page not found error or other HTTP error then your network is not configured properly for external access.