Netplay Desync

[RachelB]

Dolphin makes absolutely no attempt to make sure each emulator is running at the same speed. It doesn't know, or care, if others are ahead or behind. Normally, if a player has a controller mapped, if they fall too far behind, the buffer that holds controller input for that player will be empty, and so everyone connected will pause and wait for input to be received from them. However, if they do not have a controller set, then it will not be waiting for input from them, so they can fall behind without affecting anyone else. They will stay in sync because the buffer will simply accumulate all of the inputs from other players, and play them back as it needs to. The solution is make sure all emulators run at the same speed. If that's not possible, you can pause yours for a bit, and let him catch up, then resume, though of course you'll need to do that periodically, as he will continue to fall behind again.