Mr fncypants Posted November 20, 2015 Share Posted November 20, 2015 What does it do and why do people change it? Link to comment Share on other sites More sharing options...
FQs19 Posted November 20, 2015 Share Posted November 20, 2015 MTU https://en.wikipedia.org/wiki/Maximum_transmission_unit Basically it is the amount of packets you send at once. Some people believe that lowering that number gives them an advantage in online games. Thought is by lowering the number they will start dropping packets, which puts them on Lag Compensations good side. It's all rubbish and placebo effect. If you lower your MTU enough to start dropping packets, you are really adding more latency to your network because your modem has to resend the packets you dropped. So when you are gaming, you become the guy who is lagging the whole lobby. Link to comment Share on other sites More sharing options...
YOBIGDUSOFLY Posted November 20, 2015 Share Posted November 20, 2015 Okay then, is the greatest amount 1500? I was thinking that was the max MTU you could use? If that's the case, wouldn't it be better to set it and forget it at 1500? Link to comment Share on other sites More sharing options...
FQs19 Posted November 20, 2015 Share Posted November 20, 2015 Just leave it on auto. 1500 is the mtu for cable broadband. 1472+28 header here is how you can verify your correct mtu http://www.dslreports.com/faq/5793 Link to comment Share on other sites More sharing options...
II N3MES1S II Posted November 20, 2015 Share Posted November 20, 2015 You can try a little program called MTUtest it will show you the best MTU to use with your connection. It will tell you all the MTU levels that get fragmented or not, choose the lowest that does NOT get fragmented. Link to comment Share on other sites More sharing options...
fuzzy clam Posted November 21, 2015 Share Posted November 21, 2015 Agreed auto works fine.As soon as the game doesn't run excellent people look for any excuse to change things,MTU,throttling etc. When in reality sometimes the games just plays bad Link to comment Share on other sites More sharing options...
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