Ok -This is not going to be of any comfort, nor constructive but it is an experience I had so may help <loose terminology of help so don't shoot me>
I had the very same issue a few months back. did the traces and the tweaks and the moans etc. Truth is I walked away from the game for a week and when I came back it worked...Automagically!!
HTC has no control over the route between you and it. You have minor control in that you can cry to your ISP and see if they can re-route you. Best option - go play with the kids for a week and come back refreshed. Don't have kids? Go try to make some for a week! -
