
Graphics Configuration Enhancements (No desync in most games) These desyncs usually do not manifest in anything immediately broken, but it is still recommended you save and restart to prevent issues. If you do see a seemingly random detected desync during very long play sessions and you are using different graphics backends, this is usually the cause. However, because not all target operating systems support all backends, Dolphin will never attempt to synchronize graphics backends. Note that over long periods of time, using different video backends may eventually cause a detected desync. Any difference at all in the SD card, no matter how minor, will cause desyncs in games that access the SD card.

General Configuration General Basic Settings While Dolphin does try to automatically configure and sync settings to be correct, it is important to be familiar with settings that can affect Netplay. Dolphin will not allow users to use mismatched versions for Netplay, to prevent desyncs. It can be isolated from your main Dolphin profile by using 'portable.txt' or creating a special shortcut. Many users opt to use the latest beta versions from the official website. Newer Dolphin versions are more likely to have fixes for Netplay.

However, the internet demands rapidly increase as more players are added. Bandwidth requirements are very light: any DSL or Cable internet connection should do.
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Requirements Play Gamecube Games online, free Basically what both of you are seeing are two different games.
