It's working now?
Just to be clear, you tested Google DNS, (not something I know much about sadly), and after a bit of trouble you got that to work, and are now able to post and reply in these forums. Is that right?
But now where are we/you? Are you still using Google DNS or did you revert your DNS back to AT&T?
I do hope you are back and working with AT&T as I know this has been a trial for you.