@David-TP The port is 25565, which is the default port for Minecraft servers. I am using a private IP address for it. I have already enabled the UPNP and it hasn't worked. And I'm not really sure...

@TP-Link I have tried everything. I have looked at all the threads and done anything I can. One thing I am not very sure about is how to open the same port through the ISP gateway. I am 99% sure that...