I experienced a lot of crashes this test. I played on both my laptop and my desktop and with different browsers. It did not seem to matter. Prior to this test I would say I seldom had a crash. When I would get back into the game sometimes it took me back to an earlier play like it lost my game time. I had more lag in game than I have experienced before.
I noticed that each time I linked to a new area, the screen would darken and tell me I was being reconnected.