The Nature of Lag Issues
World of Tanks strongly recommends all the players, who are facing lagging since the release of patch 0.6.4, to read the new blog article thoroughly as it gives explanation of lag reasons and offers ways of its solution.
"The recent release of the version 0.6.4 update has led to an increase in the amount of traffic which affected our previously stable network connections. The lag issue on the US server is local, however it does affect a large part of the Eastern United States (and all related traffic that goes through it). The servers in our data center are working fine and their capacity is sufficient for the time being."
