If you're still getting the "Can't establish connection" error, let me know if you are using a physical disc digital version (Steam) so I can provide more specific troubleshooting.
You cannot skip this. For the LAN fix to work, all three computers must be in terms of game version and dependencies. lord of the rings war in the north 3 player lan fix
If you are trying to play 3-player LAN on a , you must use third-party tools to "sandbox" multiple instances of the game: If you're still getting the "Can't establish connection"
The game has a very short "handshake" window. When a third player tries to join, the game often times out before the connection is verified. You can extend this window manually. If you are trying to play 3-player LAN
This is the secret sauce that most guides miss. You need to edit the engine configuration file to force the network stability.
Here is a more detailed step-by-step guide to enabling 3-player LAN play: