Friend can't join game when in lan

[Belial13]

So a friend is staying over for a few days at my house, we set up lan, but he cannot join any of the games i create

[Mitsuki]

Ports of your warcraft and warcraft of your friend should not be same.
Try disabling firewall.
If this doesnt help, get ghost and try admin game, more info in tutorials.

[Belial13]

my port = 6112
friends = 6113
bots = 6114

we don't have firewall

tried creating a admin game with ghost, and he still can't join via eurobattle.net and doesn't see the game in lan

[Mitsuki]

Enable lan-lan in router
Triger ports in router or try virtual server. It is just a metter of router settings.

[Belial13]

don't got a router, only a switch and a shared internet connection