Disconnect in Trial of Sekhema

While fighting The Formidable Rock, I "froze" for a couple sec and then everything unfroze and fast forwarded through all the actions that took place during the freeze. Then toward the end of the fight I froze again and eventually got booted to login. Trying to login returned a message along the lines of "unable to connect to login server". After a few attempts I got in and went back into my trial and killed the boss. Global chat said nobody else disconnected. This is the first disconnect I have experienced. ssfbtw