I'm having a similar problem.
I know I have internet access because I can follow all sorts of links to all sorts of web pages. And when I install TurboTax, it downloads and installs updates, which tells me not only do I have internet connection, but I have internet connection to TurboTax.
But then when I restart TurboTax after the update, I get a screen that tells me I'm not connected to the internet, and To activate your purchase, you'll need to connect to the internet. If I click the Try again button, I either get that same page dsplayed again, or a page that's blank except for some spinning blue dots. I am not able to activate the program.
