I don’t believe this is a Guild Wars specific issue. Several other games and apps I use have the same issue. My system will work fine for several minutes then the signal goes to zero for several seconds. If I’m logged on I just stop moving (very frustrating in a fight). But if this occurs while logging on I’ll get an error. Comcast has had this issue now for several weeks. Maybe “Big Brothers” spy games are now affecting internet quality as well.