1. It is NOT the server!

The WaveNet server has absolutely no problem receiving and sending packets (the inputs of every player in the game) and virtually never lag.

The virtual machine running WaveNet is also total overkill. It could host thousands of 8-players games without ever slowing down.

IMPORTANT NOTE : If you play with someone with a 50ms ping or more using LAN connection type, some lag is to be expected no matter what. That lag will increase exponentially for every delayed players (50+ ping) added to the game.

Questions & Answers

Q: Lag stats shows 0 spike for everyone, and it still lag, so it must be the server?

A: No. Lagstats only show you when someone is lagging so bad that there was a packet loss.

Q: We all have great Internet connection so it must be the server?

A: No. For every frame, the inputs from everyone has to be sent and received by the server, and then sent back to all players in the game. Only then, our emulators can show us the next frame. For a fast paced game like UMK3 that was not made for online play, it is a tremendous challenge. Between your computer and the server, your packets are following fluctuating routes that are sometimes clogged during peak hours. There are only few things we can do to mitigate lag.

Things that do help :

• Reduce the number of players in the game. Every added player to a game is a lag multiplier since the packets has to be sent and received by everyone. For example, a game with 5 players, is exponentially more challenging than a 4 players game, and so on.


• Play the original 55FPS Mortal Kombat version. Boosting the frame rate from about 54,7 FPS to 60 FPS seems like only a small increase in the number of packets to be sent/reveived, but it is actually also a multiplier. Every single FPS increase has an exponential effect on lag. It is a fact that the original game lag significantly less often than the 60 FPS speedup version.


• Update your kaillera client! If you didn't download your emulator from umk3.remz.ca, you probably use a very outdated client that has errors and such. You can download a new package or just replace your 'kaillera.dll" file with the latest Supra Client or Open Kaillera Client (2021) from EmuLinker.org.


• Stop any other program that uses your internet connection. It is not as helpful as most people would assume. It is rarely the Internet connection that is causing lag in the first place.

You can find detailed informations in the EmuLinker documentation here.