DC issues with 25man Coliseum

Anyone seen/experienced any issues with DC on entering combat in the Coliseum Raid?
For multiple attempts i couldnt stay connected as soon as the boss aggroed.

Tried looking at the floor zoomed in, detail level to zero, closed/restarted wow.
Note: I usually dont have these issues on other bosses that have a habit of lagging people out (eg Thorim)

Nope. No problems.

Maybe it has to do with your addons? Try starting it with everything turned off.

I was getting huge dips in framerate when Wassisface the Impaler came out. 90fps before and after he spawned, less than 1fps while he was there, even with shadows on Low, etc on a Core i7 machine, 8Gb DDR3 and a GTX260. Turned off pretty much everything aside from Dominos and Xperl (and CT_Raidtracker, etc) and it worked acceptably, though there was still a very notable dip in performance only while he was spawned.

Also had a lot of people disconnecting in the fight. I think there's something in that encounter that causes your addons to shit themselves but not sure which addons specifically unfortunately.