I have an issue with lag as well, and it's been like this since early this month. Nothing on my computer has changed and just out of nowhere I have been spontaneously dropping to one bar. I live close enough to the server that I should have a consistent four bars rating so this is very aggrivating.

And for the record, this only ever occurs on the European server. I've played a couple of times on the American server and it's just fine but when I play on the European a lagspike will occassionally hit - and it hits hard - rendering my gameplay a chaotic mess as my Knight jerks all over the place and mobs as well as other Knights fly off the boundaries of the level. I had a hilarious moment when it hit during Lockdown and after getting killed and looking through the "kill-cam" (they should just call it a predator-cam as it doesn't really display how they killed you) I saw them dashing out of the level far enough to the point where I could actually see the map in its entirety as well as all the other players flying off in their own direction.

As I said, nothing has changed on my computer so I'm thinking there must be some server-side shenanigans going on here.