Quote Originally Posted by Alhanelem View Post
Weird, not one of my FC members living in NA were hit by any "post 2.1 lag issue". I hadn't heard about any *new* lag issues since 2.1. The only lag issues I had were between the novemeber hotfix patch and patch 2.1 where I would get random lag spikes. But for me at least, that stopped after 2.1.

As far as I'm concerned, network issues have decreased post 2.1, not increased.
There's a whole thread about it here.

The problems have to do with Level3, one of the network points FiOS uses to send data to Montreal, frequently dropping packets. Anybody with an ISP that communicates with Level3 will experience the problem, not just FiOS customers.

That's why WTFast fixes the issues; it circumvents that whole network.