I configured my Google account on El Capitan (OS X 10.11.2) using Internet Accounts and it worked fine for a while. However, after a restart the system asked again for the password and 2-factor authentication code, which I provided, but then I get stuck in the following window after entering my password and code:
In the above window, if I hit
Cancel and then try to select anything in the Google account I get the message "Unable to verify account name or password."
If I delete the account and add it again I'm asked for my password and 2-factor authentication code, but after providing them I get stuck in the following window - notice that the
Done button turned grey after pressing it, and the dialog never closed after that:
I already tried starting my system in safe mode, with the same results. What's happening? Any help will be greatly appreciated!