Guild Wars 2

Hello everyone,

Ever since the last patch I have been getting blips of lag every 3 seconds steadily when doing the holiday jumping puzzle. This doesn’t happen anywhere else in the game. It doesn’t happen when I’m in the waiting area for the jumping puzzle, only during running it. Prior to the most recent patch, I was able to run the puzzle on a loop, but now i’m lucky to finish it once.

Also, today after my first run, the chest was empty:
http://i.imgur.com/w2OLF.jpg

What i’ve tried:
Monitoring cpu and memory usage. Neither pings 100% when these blips happen
Computer is clean from malware
Resetting my internet connection
Rebooting my modem (no router on this machine)
Running the puzzle with the graphics settings turned all the way down
Windows Aero has always been disabled

Specs:
AMD Phenom x4 9750
Nvidia GTX260
4GB DDR2 800 RAM
20MB Download/2MB Upload Internet
Windows 7 64-bit