# \[Networking\] Mobile-Cross-Platform Multiplayer **URL:** \ **Category:** Mobile\ **Tags:** cross-platform, Networking, Mobile, Server, unreal-engine, Multiplayer, question\ **Created:** [November 15, 2014, 4:52pm UTC](https://forums.unrealengine.com/t/networking-mobile-cross-platform-multiplayer/299034 "2014-11-15T16:52:23Z")\ **Posts on this page:** 15\ **Page:** 1
**Author:** ![anonymous\_user\_fc4c82b6](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_fc4c82b6](https://forums.unrealengine.com/u/anonymous_user_fc4c82b6)\ **Post date:** [November 15, 2014, 4:52pm UTC](https://forums.unrealengine.com/t/networking-mobile-cross-platform-multiplayer/299034/1 "2014-11-15T16:52:23Z")
Hey guys, I did a really simple setup for a mobile game with multiplayer support, however I cannot play in the Editor (PIE) and connect to that server using the my phone (I tried with listen server and dedicated server). If I however do the Mobile preview and try to connect via the launched app on my phone (Android), I can join. Is it possible to have a cross-platform game (between iOS and Android) while having a dedicated server running on Windows (or Linux, I don’t really care, at least some sort of dedicated server)? (I’m pretty sure it’s “possible”, but with an non-enormous amount of work to do?) When trying to connect on a Windows-Server with my Android-Phone, I get this log: ``` LogNet: NotifyAcceptingConnection: Server AISMap accept LogNet: Open AISMap 11/15/14 17:50:13 LogNet: Added client connection. Remote address = :55172 LogNet: NotifyAcceptingChannel Control 0 server World /Game/Maps/UEDPIE_0_AISMap.AISMap: Accepted LogNet: Remote platform little endian=1 LogNet: This platform little endian=1 LogNet: Login request: /Game/Maps/AISMap userId: Invalid LogNet: Client netspeed is 10000 LogNet: UChannel::ReceivedSequencedBunch: Bunch.bClose == true. ChIndex == 0. Calling ConditionalCleanUp. LogNet: UChannel::CleanUp: [GameNetDriver] [NoPC] [No Owner]. ChIndex == 0. Closing connection. LogNet: UNetConnection::Close: Name: IpConnection_39, Driver: GameNetDriver IpNetDriver_36, PC: NULL, Owner: NULL, Channels: 2, RemoteAddr: :55172, Time: 2014.11.15-16.50.13 LogNet: UChannel::Close: Sending CloseBunch. ChIndex == 0. Name: ControlChannel_39 ``` Thanks in advance! ---
**Author:** ![anonymous\_user\_17b7e8e8](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_17b7e8e8](https://forums.unrealengine.com/u/anonymous_user_17b7e8e8)\ **Post date:** [December 23, 2014, 9:11am UTC](https://forums.unrealengine.com/t/networking-mobile-cross-platform-multiplayer/299034/2 "2014-12-23T09:11:49Z")
I’m having the same issue. ---
**Author:** ![Shadowriver](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Shadowriver](https://forums.unrealengine.com/u/Shadowriver)\ **Post date:** [December 23, 2014, 9:20am UTC](https://forums.unrealengine.com/t/networking-mobile-cross-platform-multiplayer/299034/3 "2014-12-23T09:20:11Z")
UserId Invalid might be the issue, make sure your mobile and PC use same Online Subsystem, also check mobile log, in android you can do that via logcat ---
**Author:** ![anonymous\_user\_17b7e8e8](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_17b7e8e8](https://forums.unrealengine.com/u/anonymous_user_17b7e8e8)\ **Post date:** [December 23, 2014, 10:45am UTC](https://forums.unrealengine.com/t/networking-mobile-cross-platform-multiplayer/299034/4 "2014-12-23T10:45:17Z")
Thanks for the info, I’ve got this log: `LogLinker: Can't find file for asset '/Game/Maps/UEDPIE_1_Example_Map' while loading NULL. LogLinker:Warning: Can't find file '/Game/Maps/UEDPIE_1_Example_Map' LogUObjectGlobals:Warning: Failed to load '/Game/Maps/UEDPIE_1_Example_Map': Can't find file '/Game/Maps/UEDPIE_1_Example_Map' ` Looks like PIE have mangled the map name (added a prefix ‘UEDPIE\_1\_’) so client on my phone failed to load the map. ---
**Author:** ![anonymous\_user\_f345f9b2](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_f345f9b2](https://forums.unrealengine.com/u/anonymous_user_f345f9b2)\ **Post date:** [May 31, 2015, 9:52pm UTC](https://forums.unrealengine.com/t/networking-mobile-cross-platform-multiplayer/299034/5 "2015-05-31T21:52:21Z")
Did you bake it for the specific device ---
**Author:** ![anonymous\_user\_ad25bc7a](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_ad25bc7a](https://forums.unrealengine.com/u/anonymous_user_ad25bc7a)\ **Post date:** [May 29, 2017, 8:12am UTC](https://forums.unrealengine.com/t/networking-mobile-cross-platform-multiplayer/299034/6 "2017-05-29T08:12:12Z")
Hello, I really like to make an android multiplayer game. I am not sure what online sub system shall I use? Could you throw some light on it? Appreciated! ---
**Author:** ![anonymous\_user\_f345f9b2](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_f345f9b2](https://forums.unrealengine.com/u/anonymous_user_f345f9b2)\ **Post date:** [May 29, 2017, 8:26am UTC](https://forums.unrealengine.com/t/networking-mobile-cross-platform-multiplayer/299034/7 "2017-05-29T08:26:00Z")
Depends on the game and how many players you got playing at once. ---
**Author:** ![anonymous\_user\_f345f9b2](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_f345f9b2](https://forums.unrealengine.com/u/anonymous_user_f345f9b2)\ **Post date:** [May 29, 2017, 8:33am UTC](https://forums.unrealengine.com/t/networking-mobile-cross-platform-multiplayer/299034/8 "2017-05-29T08:33:41Z")
Most android games use google or Facebook ---
**Author:** ![anonymous\_user\_f345f9b2](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_f345f9b2](https://forums.unrealengine.com/u/anonymous_user_f345f9b2)\ **Post date:** [May 29, 2017, 8:41am UTC](https://forums.unrealengine.com/t/networking-mobile-cross-platform-multiplayer/299034/9 "2017-05-29T08:41:18Z")
You could create your own sub system to that’s also Optional ---
**Author:** ![anonymous\_user\_ad25bc7a](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_ad25bc7a](https://forums.unrealengine.com/u/anonymous_user_ad25bc7a)\ **Post date:** [May 29, 2017, 11:09pm UTC](https://forums.unrealengine.com/t/networking-mobile-cross-platform-multiplayer/299034/10 "2017-05-29T23:09:52Z")
I am sorry, I know that using steam, you can copy and paste rows of code to the engine.ini and the sub system work. But for android, how to write these code? I cannot find a sample on the ue4 doc. Thank you, ---
**Author:** ![anonymous\_user\_f345f9b2](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_f345f9b2](https://forums.unrealengine.com/u/anonymous_user_f345f9b2)\ **Post date:** [May 30, 2017, 10:55am UTC](https://forums.unrealengine.com/t/networking-mobile-cross-platform-multiplayer/299034/11 "2017-05-30T10:55:45Z")
> **[A new, community-hosted Unreal Engine Wiki](https://forums.unrealengine.com/t/a-new-community-hosted-unreal-engine-wiki/141494)** > > After over a year in maintenance mode, the official Unreal Engine Wiki is now permanently offline. These resources now live on a new community-run Unreal Engine Community Wiki — https://unrealcommunity.wiki/! You will be able to find content from... Here’s a sample ---
**Author:** ![anonymous\_user\_f345f9b2](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_f345f9b2](https://forums.unrealengine.com/u/anonymous_user_f345f9b2)\ **Post date:** [May 30, 2017, 10:57am UTC](https://forums.unrealengine.com/t/networking-mobile-cross-platform-multiplayer/299034/12 "2017-05-30T10:57:59Z")
But I don’t think your gonna get the results your expecting especially since the steam subsystem are designed for pc ---
**Author:** ![anonymous\_user\_f345f9b2](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_f345f9b2](https://forums.unrealengine.com/u/anonymous_user_f345f9b2)\ **Post date:** [May 30, 2017, 10:59am UTC](https://forums.unrealengine.com/t/networking-mobile-cross-platform-multiplayer/299034/13 "2017-05-30T10:59:03Z")
I don’t think the steam subsystem works with android devices ---
**Author:** ![anonymous\_user\_f345f9b2](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_f345f9b2](https://forums.unrealengine.com/u/anonymous_user_f345f9b2)\ **Post date:** [May 30, 2017, 11:00am UTC](https://forums.unrealengine.com/t/networking-mobile-cross-platform-multiplayer/299034/14 "2017-05-30T11:00:33Z")
You wanna download android developer to get there subsystem ---
**Author:** ![anonymous\_user\_f345f9b2](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_f345f9b2](https://forums.unrealengine.com/u/anonymous_user_f345f9b2)\ **Post date:** [May 30, 2017, 11:13am UTC](https://forums.unrealengine.com/t/networking-mobile-cross-platform-multiplayer/299034/15 "2017-05-30T11:13:45Z")
How much c++ coding do you know