There is a huge problem right now with constant zone disconnects leading to entire zone population rollbacks. This seems to begin once you hit Greenshade, and I've been told it continues in zones even higher level.
This has been persistent over the past two days, and continues after the maintenance done prior to the "live release".
Please post here if you are familiar with this issue, as I think it will grow once people start getting to the level needed to enter these glitched zones.
HELP ZENIMAX, I really love this game, but the rollback problem will kill it quickly.