Im running 1.12.2 Minecraft version and still having the same problem. I run a Minecraft server and want to play with 2 friends. But only two people can loggin in the server, when the third one try to log in after some seconds the following message appears "Internal Exception: java.io.IOException: An existing connection was forcibly closed by the remote host".
I've already deactivated my anti-virus and firewall, but didnt work. Any help?
I read some of this topic and this bug is here since 2013... for godsake Mojang help us!
Whats is a "bundled Java runtime" and how I get it?