All I have to say, is thank god they're fixing naxx lag as a part of this. It was so bad for my guild last night on Thaddius that we actually had to kick 5 people out for him so he wouldn't lag us to death (also got the achieve, so I guess that's good :p).
there is only 1 problem in NAxxits' the 4HM!i never lagged when i was doing other bosses on Naxx, but once we engage 4HM, i will DC after a short fight even when im on 200 ms, this is ridiculous, im not the only one who got DC, its almost 1/2 of the raid, so definitely something wrong with 4HM
Heh I'll be glad when they can get a good fix on it soon.the most severe example of this happened to me when i was main tank on Naxx for 4 horsemen. We get first boss almost down and then what happens? Oh i disconnected! Needless to say, the whole raid wiped cause of that :/(We managed to down 4 horsemen with the next try)
Sounds good...finally! Something needed to be done. I kept lagging out of Naxx 25 man when action got too heavy. And after a couple of reconnects I would get teleported back to Dalaran!
I can guarantee you that lag isn't restricted to the 4H (though we had some nice things there too). Last reset on Sarth 25, i took something like 5-6 waves due to lag, and actually only got the debuff 2-3 times (and not it wasn't because of the effect/graphic position difference).