This was originally posted to deal with Aion lag issues, however this will work with many if not all MMO's - not just Aion.Aion lag has been a real problem for many people since the 1.5 patch. Whatever they did bumped my latency from ~100ms to ~400ms on average, not good for PvP and not good in general.
I came across a TCP registry tweak that affects the way in which upstream data is prioritized and, well, see for yourself how it impacted my Aion pings:
BEFORE
AFTER
That's pretty close to a 50% cut in latency. Pings were sent in the same in game location and within the time it took to restart the computer and load Aion. So if you are having latency issues that NCSoft is unable or unwilling to address, you might want to give Leatrix a shot.
Leatrix @ wowinterface.com
