Greetings, Version 1.3.6. is now available. In online battle mode, when you create a game, it will throw a warning if it detects that you are not reachable from outside as a host (but it will let you create the game anyway). When you join a game, it will throw a warning if it detects that the host is not reachable from outside (but it will attempt to join anyway). As a reminder, for the host to be joinable from outside, the UDP and TCP ports 15127-15129 must be open for both upload and download. This depends on the UPnP router configuration, and, in some cases, on the internet service provider. Such issues appear on most games that use peer-to-peer online multiplayer - not just this one. The alternative would be to replace the peer-to-peer system with a server-managed system, but this would be too costly on our side (in terms of both implementation and server resource usage). For information about opening the ports on your router, please refer to this website: [url]http://portforward.com/english/routers/port_forwarding/routerindex.htm[/url] Cheers.