For background information on VPNs please see our External Access guide at http://www.stratospherix.com/products/guides/SetupForExternalAccess.pdf

VPN Checklist

1. When on your WiFi network, configure the iPhone/iPad VPN client to connect to the local IP address of your VPN server. This will test whether the configuration is correct on both the VPN Server and iPad/iPhone VPN client without requiring Internet access or port-forwarding.
2. Once the VPN will connect locally, check that TCP Port 1723 (PPTP) is being forwarded from your router to the IP address of your VPN server, then change the VPN client configuration on your iPad / iPhone to point to the public IP address or DNS name of your router. Try to connect again. This will test if the port-forwarding rule is working.
3. Once you can connect using the public address from your WiFi network, you should be able to switch off WiFi and connect via the Internet over 3G.

App Checklist

1. The VPN must be connected before launching our App.
2. Check that the remote network doesn't use the same IP network ID and range of addresses as the local network. For example, if your local network uses 192.168.0.x addresses and so does the remote network, the iPad/iPhone will think that the target computer/NAS is local rather than at the other end of the VPN connection and will therefore timeout when trying to connect. The easiest way of fixing this is to change your home IP network range in your router's config.
3. When connecting over a VPN use the same computer name or IP address in FileBrowser that you use with local WiFi.