said by Calero27:This has been an ongoing problem for years and it doesn't really matter who your ISP is. Until Blizzard stops peering directly with AT&T it will most likely always be there. If you go to Blizzards forum site there are tons of these complaints going back 10 years. Sorry bud.
It's not that Blizzard is peering with AT&T, it's that AT&T is providing Blizzard's transit services. Essentially, they are Blizzard's ISP.
The problem is when your ISP (in this case Charter) gets to AT&T through Cogent. Cogent is one of the major transit providers that Netflix uses that is having disputes with AT&T, Verizon, and Comcast. This is actually a side effect of the Netflix issues.