My Update to this Error 7:
My wife and i have been playing since the betas. My wife has had error 7 issues for the past 3 days while my computer has had no issues. I have tried every fix for antivirus and opening ports with nothing working. Finally i disabled her wireless adapter and hard wired it to the router.
Problem fixed! no more Error 7. Not sure what the last update did to the game but it didnt like her wireless adapter.