Same here, Ive encountered this problem since the last patch, I had stable 37 ping before that, now its 37 with about 6 lag spikes per round (5 minutes) when my ping goes to about 100-250 ping. I thought its a problem of my roommates, thought they are downloading something, but then I played while they were away for Christmas and I still had lag spikes...All my other online games work fine without this problem....I am playing from the UK.