Had no problems before the Nightfall special preview, but the next couple of days after...talk about LAG!
Everytime I would log in, I would get a "Connecting..." message, pick my character, "Connecting..." Then I finally got into the Shing Jea Monestary on my N/W5, I moved up about 10 steps, and my game froze and my whole internet poofed.
Waited for about 2-3 days, plays fine. So the lag is probably after every HUGE event like that, expect lag because the server is full with people trying to see what it's all about. Same with Halloween and Christmas parties on Guildwars.
