I've been dealing with lag spikes for a few days.

Players and mobs "lunging" forward, missed AoE cues, missed timers

I was doing the solo fight in Bozja and everything froze for almost 30 seconds. I thought I was going to be DCed for sure.

I live on the east coast and my friend in the west and we've both been experiencing lag spikes, thought we don't have any technical issues with Skype. I swear this starts happening in the days leading up to a patch.

We both have Comcast, so I'm willing to believe its them as well.