High latency when raiding

[ohshift]

Hello.
So, im running a Quad Core, Q6660 i think, or something around this, 4gb ram, Vista ( :), and an HD4850. Using a shitty 600kbps conection.

Heres the problem. As soon as we engage any 25 boss (doesnt seem to happen in 10m), my latency simply skyrocket. I'm usually playing with 400~500ms, and the SECOND (no kidding) we engage anything, it goes up to 6~7k, and i end up dcing. The second the mob/boss is dead, it goes back to 400ms. This also happened in my 10mbps conection some time ago.

[Deleted]

http://www.mmo-champion.com/computer/reduce-your-latency-(maybe)/