Connecting fails with computers on LAN and external serve

[ReaverTeknoGods]

trafficstars

Running the server on external ip (with port forwarded obviously) works fine with computers on different IP addresses. (networks)

Example: Server IP1 (Port forwarded) Client IP2 (Behind NAT) Client IP3 (Behind NAT) = WORKS

Not working example: Server IP1 (Port forwarded) Client IP2 (Behind same NAT) Client IP2 (Behind same NAT) = DOES NOT WORK

It fails to connect to the other peer on line: ENetPeer* peerRemote = enet_host_connect(host, &addr, 2, 0);

peerRemote->state is stuck at ENET_PEER_STATE_CONNECTING forever.

[codecat]

There's a chance the router can see that a client from its network is trying to connect to itself and then not route it as expected. Perhaps a good solution would be to detect the case of being behind the same NAT and public IP address, and then route it through local IP addresses instead.

[ReaverTeknoGods]

What if there is 3 players on LAN 1 and 2 players on LAN 2?

[codecat]

I guess that depends on your actual implementation of your game lobbies. You could pick one of those players as the host, then connections could be made in a directed manner.