After months of not being disco'd it's been happening to me a lot the last 2-3 months. I've been disco'd 9 times so far this month. 3 in one night.
Today I climbed a set of Lancs to 23K, got my first of three drops in and CTD'd. That's the first and only time I've ever CTD'd. The rest have always been lost UDP sessions.
Disco's started about the time that the servers were down and you (HT) said you were only adding some new memory and now, with the recent terrain changes, have really gotten bad. Also, since the terrain changes, I see a lot more warping in the arenas. It used to be only once every week or two, now it's several times per week.
My internet connection works flawlessly otherwise (I'm on cable).