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Old 04-25-2008, 07:04 PM
Nukez Nukez is offline
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windows registry tweaks to improve WOW latency

Hey guys, not sure if you know these so I thought I'd share. I had to recently re-do these when I built my new PC a week or so ago. They really help and lower your latency by a good chunk while playing WOW and have no adverse affect on anything else.

Quote:
WoW lags, it's not something new if you're playing on servers a bit far away from your country, but don't worry people are fixing it ! Out of all the methods offered to fix the lag on your machine, one of them posted on Elitistjerks forums seems to work very well.

<> <> <> Read this first <> <> <>
1 - It might have side effects, like slowing down your download speed or affecting your performance on other softwares. (In my case, it didn't change anything)
2 - If you're not sure about what you're doing, just don't do it. I don't want to be responsible because you crashed your computer in some way because you wasted your registry.
2.1 - Seriously, if you don't know what you're doing, don't do it. It will be fixed in one or two weeks anyway. (and the official fix won't have any impact on other softwares)
3 - If you don't have the HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\MSMQ\ directory, you can download and apply this file to your registry.
4 - Windows Vista users might want to check this post too.

Source - Elitistjerks.com

"1 - TcpAckFrequency - NOTE if you are running Windows Vista this setting may not have any effect - a hotfix is needed which i'm tracking down. This works fine under Windows XP

Type "regedit" in windows "run.." dialog to bring up registry menu

Then find:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Servic es\Tcpip\Parameters\Interfaces\

There will be multiple NIC interfaces listed in there, find the one you use to connect to the internet, there will be several interfaces listed (they have long names like {7DBA6DCA-FFE8-4002-A28F-4D2B57AE8383}. Click each one, the right one will have lots of settings in it and you will see your machines IP address listed there somewhere. Right-click in the right hand pane and add a new DWORD value, name it TcpAckFrequency, then right click the entry and click Modify and assign a value of 1.

You can change it back to 2 (default) at a later stage if it affects your other TCP application performance. it tells windows how many TCP packets to wait before sending ACK. if the value is 1, windows will send ACK every time it receives a TCP package.

2 - TCPNoDelay
This one is pretty simple (Discussed here)

Type "regedit" in windows "run.." dialog to bring up registry menu

Then find:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\MSMQ\Paramet ers

Right-click in the right hand pane and add a new DWORD value, name it TCPNoDelay, then right click the entry and click Modify and assign a value of 1.

Click Ok and close the registry editor, then reboot your PC."

Basically, this fix is deactivating the Nagle algorithm to improve your ping. If you don't want to do it you can just wait for the 2.3.2 patch as it's supposed to deactivate it too, but I don't think you can test it on PTRs right now because the updated patch notes from the latest PTR Build (7705) are actually for the upcoming build (7710).
FYI, the 2.3.2 patch didn't seem to do much as far as lowering in game latency with the change they did to the Nagle algorithm
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Old 07-11-2009, 02:41 AM
Elaurt Elaurt is offline
 
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Sorry for the grave dig, but I just wanted to add my two cents.

This little trick lowered my latency from around ~250 to ~70, I think it's defiantly something that everybody should do. And it only takes a few minutes =]
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Old 07-11-2009, 04:27 PM
Smoken Smoken is offline
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Yeah this little change helps a lot... even with Fios was sitting at 200 ping, this change gave me 20-40ms pings now.
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Old 07-11-2009, 06:49 PM
Nukez Nukez is offline
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fo shizzle
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Old 10-15-2009, 04:35 AM
Tsego13 Tsego13 is offline
 
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Thnks

Id marry you thanks Allot :P
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Old 07-20-2010, 09:52 PM
iKanonzi iKanonzi is offline
 
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Quote:
Originally Posted by Smoken View Post
Yeah this little change helps a lot... even with Fios was sitting at 200 ping, this change gave me 20-40ms pings now.
Does this work for windows 7?
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Old 07-20-2010, 10:30 PM
arlen arlen is offline
 
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Yes
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Old 10-20-2010, 07:46 AM
Sweetmojo Sweetmojo is offline
 
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Leatrix Latency Fix can hook you up as well. Worked great on my gaming comp, took me from a 140-160 latency down to a 70-80 latency. So a 50% improvement, works for me.
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Old 01-23-2014, 06:56 PM
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Surlybeve Surlybeve is offline
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fuck you lyrra

Last edited by Surlybeve; 01-23-2014 at 08:02 PM.
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