Netplay isn't working the right way.

[MichelatteYT]

My cousins and want to play Dolphin games together via Netplay. All of the settings are just as the should be (we followed the Netplay guide), and our roms and memory cards are the exact same. When my cousins connect to me through a transversal server, their name shows up for a second on the players list, then vanishes. Help would be greatly appreciated.

[JMC47]

I'd guess that one of your routers doesn't like the traversal server. If you can, try forwarding a port and manually connecting through direct IP.