When I started replaying WoW in Aug, I generally averaged about 150-180 ms latency at home. I thought it was annoying but playable at 400-600ms when I was in Korea for 2 weeks at the end of August.
Sometime recently (since around the time of patch 2.3, possibly up to a week before it) my latency is all over the place (except good). I'm lucky if I get 180ms, usually its in the 200-300 and into the yellow at 400s. It's annoying and it is completely unpredictable.
I tried some latency tests online to various servers around the country and they generally come back as around 50 ms ping time. Does that mean it is not my connection, but perhaps congestion between myself and the WoW server? Something at the ISP (Brighthouse Cable in Orlando, FL, if that matters) where they are throttling game data?
Does anyone have any ideas to check out? I read some threads on the official forums (shudder) looking for help, but most of those are just people saying "Hey Blizzard, what did you break? My latency sucks now! Fix it!" and no word from any blues. Some others suggested that it was related to using a sound card/hardware drivers for sound (?) - that doesn't even begin to make sense to me.
I found this site that purports to help you track down source of high latency. I'm a little worried of just installing some unknown program that is going to run while I play - could contain a keylogger or something. Anyone have any experience or know of something similar but reputable?
Any help would be appreciated. Oh another thing that is weird is that my wife's computer right next to mine seems unaffected and/or possibly less affected that mine (not entirely scientific, I know, but that's the best anecdotal evidence I've got). Both computers use wireless NICs, though different models. I've updated my driver to the most current official one. One other difference is that her computer uses on-board sound, unlike mine - some credence to the weird theory on the official forums that this is somehow related to sound card hardware drivers?