My family likes to play Civ V MP over LAN. We play wireless. I have a top of the line modem and router. Yet when the 4th or sometimes 3rd computer joins, the game just stops. It freezes or whatever.
Please tell me there is a fix, and do not say that I have to hook the laptops up with a wire...
Thanks!
Having had enough connection issues with Civ 5 playing with just my one computer connected via wireless to the internet I shudder to think what running 3-4 copies on the same router would do. Nothing good, I'm sure. Still, some ideas:
Might be counter-intuitive, but have you tried playing in Steam's offline mode and seeing if you can get a local network game going? You can't play via internet that way but you should still be able to use a LAN and it would take Steam's weirdness out of the loop.
Have you tried a similar sized multiplayer setup with other people over the internet (with just one player locally)? It's possible your issues are with one or more of the PC's not being able to handle the multiplayer rather than the LAN itself.
For troubleshooting, have you tried your 4 player match hooked together with ethernet cables? I understand that's not what you ultimately want to do but if you can't get it working that way either, at least you will know it's not the wireless router that is the issue.
And my old standby for Civ 5 multiplayer issues: Play Civ 4! It may not be smooth as butter for multiplayer, but at least it works!
Good luck, and hope my ideas are mildly useful. There is also a dedicated
multiplayer sub-forum you might get more experienced help in, if you haven't checked it out already.