Quote Originally Posted by Crissy View Post
Far be it from me to defend Comcast, but I've traced latency and packet loss back to servers. There's nothing going on until you get to the "end of the line". It's also restricted to dungeon/raid servers; my realm servers are working well.
That doesn't necessarily mean there's anything wrong though. It's not unusual for a node, especially at "the end of the line", to shunt a ping test packet to low priority or to throw it out all together in order to make room for actual traffic. It can easily cause a test to give you exaggerated ping or timeouts even if normal data has no issues whatsoever. For example, even when I'm having zero issues with my connection in the game (including instances), if I were to do a ping test from where I am in north Florida up to where SE has the servers in Canada, my "ping" always skyrockets into the 400-600 range once it hits Montreal. And that's all because of how the Level3 node handles the ping test packet more so than my actual connection.

Besides, as mentioned, if it were a problem with the servers themselves then literally everyone connected to that data center would be having the same problem. That's rarely the case, so the cause is almost always something going wrong in between your ISP and the game servers, which is typically out of SE's hands.