Since the middle of August I have been experiencing bag latency in World of Warcraft. I used to sit at around 800ms before applying the registry fix, but since I applied that I sat at around 400ms. But ever since August I’ve been sitting at around 32930ms latency.
Friday night I found out that without Blizzard saying one word to let anyone know, and they have yet to publicly acknowledge this but they moved my realms data center which was located in Seattle, Washington to Phoenix, Arizona back on the 17th of August. While moving this data center they also moved the Boston, Massachusetts data center to New York, New York on the 20th of July and the Dallas, Texas data center to Chicago, Illinois sometime in June.
I think this would have been acceptable if they had made a post on the forums so we had a heads up, but I actually found this out from a trace-route while I was trying to work out my latency problems. After much playing around tonight, I read a post on the Blizzard forums with a command stating that it reduced someones latency by almost half so I thought I’d give it a go. It reduced my latency from 32930ms to 350-400ms which is what I was experiencing before they moved the server. I don’t really understand why this simple command fixes the problem so well but I will be investigating this week and I’ll make sure to edit this if I find out. But for now enjoy!
Simply run the following command in CMD with administration privileges.
netsh interface ipv4 set subinterface “Local Area Connection” mtu=950 store=persistent