I modded the c3 signaling server

You two are not talking about the same thing.

> try re downloading the sigserver and running that

That sounds good. I have no idea how to do that though. 😕

you can buy from here.

construct.net/en/game-assets/tools/multiplayer-signalling-server-2

Scirra hosts a free official signalling server at wss://multiplayer.scirra.com, running on a high-end dedicated server with a gigabit connection. If this is suitable for your needs, you do not need to run your own signalling server.

Sofa_King if you need help with multiplayer, please make your own thread in the How Do I forum - this thread is from someone showing what they've created.