Multiplayer working fine at my place but not at end user's place

Development Programming & Scripting Blueprint
1

Hello,

I am in strange problem. My game is working fine with multiplayer at my location, but at client location its not working. We’ve checked network and everything is fine. Most strange part is a build which I sent 2 days ago is still working fine at the other side, but if they run present build multiplayer is not working.

I don’t have any idea what to do in this situation, As build is working fine at my side but not at client side.One Version old build is still working fine at both sides. End machines are good in Hardware configuration and network is fine as earlier build is running quite well (even now).

Please help me out on this. Never seen such problem.
I am open for any weird ideas too. I don’t even know what to do here.

I didn’t even touched Multiplayer code from my previous build. Is there any specific setting for it to work (IDK I am a newbie).

2

Not working how, specifically? Are you using a dedicated server? If so, you may need to rebuild the server to match the current game build

3

Players are not able to connect to server. I am using Listen server and I’ve made sure that all machines are running same build.

4

Make sure your ports are open? I believe you’d want to try http://www.canyouseeme.org