What's a TURN server and how does it relate to enabling mobile connections with NAT restrictions to connect properly using the Multiplayer plugin?
I think it would be best to do some research on Google - this is a complex area and will involve setting up other software which we don't make, so can't help you with.
Yeah sure, but Construct is marketed as a tool that enables cross-platform game creation where mobile gaming is a significant component
The problem is the Internet, not Construct. Any software using the same approach will have the same problems.