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Tools for Lowering Latency



Recently, I've seen a couple posts on latency in WoW, and thought I would ask here:

Have you used any settings, programs, or other tools to improve your WoW Latency? Have you found these things have actually improved latency?

Obviously, for players in Australia and the like, there's a limit to how far you can improve the latency of WoW; the data itself can only travel the speed of light. With Sydney to boston being 10000 miles, there's an implicit:

(10 090 miles) / the speed of light = 54.165075 milliseconds

latency introduced, even if no computers were involved. However, sometimes people have reported changing registry settings and the like to improve their latency.

Has improving your latency helped your playing? Have you considered (or actually) changed realms to get to a better datacenter for your playing?

At what point does the latency you play with affect your gameplay, and how do you counteract that latency?

4 Answer(s)

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I used the trial version of this service (Its $5.99/mo after, but sometimes worth it to fix a crappy ping that your ISP won't resolve):


Basically what it is, it creates a VPN from your PC onto their network, where they have optimized all of their requests on servers that forward you directly to the games servers. I don't know all their magic, but here's a quote from their FAQ:

Basically, the SmoothPing service takes advantage of the higher priority that encrypted traffic is given on the Internet. Simply put, we are able to redirect your connection from the slow, every day "pipes" that are being used constantly by millions of users, to the much faster, infrequently used, high speed Secure routing on the internet.

I personally have Comcast internet, and their DNS servers & routers aren't known for being reliable. I found a lot of the latency that I have at home on my PC was from it having slow response times looking up where to route the data, and I would get a lot of timeouts randomly stalling everything. I'm no networking wizard, but it did lower my ping time and eliminated the "Request Timeouts". Before I was using it, I was disconnecting because of crappy timeouts every single raid (multiple times).

I didn't end up subscribing to the service, but it seemed to work. Anyone else have experience?



Im a smoothping user and man i cant live without it anymore! I live in Brazil and play wow on one LA based server. Without smoothping i get 400+ms but when i use it i can go as low as 180ms, a big improvement on spell casts and response from the game! As a ret/prot paladin (my main) i can tell when game is laggin as i cast an instant spell like a judgement. If if lands instantly im happy! Belive me when i say, i need smoothping to play now.


(this really should be a comment on jesta's answer... please delete / post comment) – ♦♦gnarf (Mar 4 2010 2:30 PM)



I recommend trying Leatrix Latency Fix. This is a simple program (really just a wrapper to a registry edit) that makes a simple change to how Windows processes TCP/IP (internet) traffic, that in some cases can reduce latency by a lot.

There is a ton of info at the download page, but basically what the fix does is send each packet of internet traffic individually, instead of bundling them. This results in lower latency, although potentially slightly higher CPU load.

Many guildmates of mine use this to great effect, saying it lowered their latency by 50% or more. It is worth a try, especially as the download includes an uninstall program to undo the change it makes, if you decide not to use it.


+1 for the mod, I've also heard first had good things about it. Though I myself with running Win7 Ultimate it actually screws my latency up. – thatguyb25 (Mar 5 2010 9:32 AM)



Anytime you are running with 400 latency or more, it's going to bite into your performance, especially if you are playing a class that depends on proper implementation of procs (for example, balance druids). Classes with a large amount of white damage (e.g., rogues) are less impacted by big latency numbers. Ultimately whether you decide to switch servers comes not just from latency, but from what you would be giving up besides performance -- I have a friend in my guild whose job moved her to London, but she plays on our server because all of her friends are here, even though she had about 900+ latency most times.

On our campaign to help her latency, we found multiple resources:

1) This thread on Elitist Jerks has a number of very good tweaks that require minimal computer knowledge and no external program to implement. These steps helped her drop her latency by about 150 on average.

2) The Quartz addon. This doesn't drop your latency, but it helps track and compensate for latency effects, telling you when to start casting your next spell even though it doesn't look like the first has finished and so forth.

3) www.lowerping.com. If you live overseas, a proxy server will only help you if it is close enough to make a difference. This service dropped her latency to about 150-200, even during peak raiding hours.

Does it make a difference? My London boomkin friend now does about 1.5K more in DPS, and has gone from the bottom of the raid meter to the top third.


+1 : The chain disconnects thread on Elitist Jerks is extremely helpful. – Fiyeri (Mar 4 2010 10:52 PM)

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