Hi,
I had this line setup with Zen about 3 weeks ago and had an old US Robotics ADSL2 router just to get the line trained before moving in. This seemed to be 5.6 to 5.6 d/s whenever I was around to check it. Upon first moving in, I did notice it drop synch a few times and disconnect me playing WoW, but didnt think too much of it coming ...