I did use said guide. Sorry if it wasn't clear from my initial post but I did state that when I should have gotten the "Allow Access" window, I instead received the Google verify window,
Hence, this would have been after pressing the “Start” button to "authorize connection." Instead of the dialog box mentioned where I would then press the “Allow access” button, the dialog that opens wants to force domain verification. Again, if I can send a picture, I have a screenshot.