Basic Authentication is a special (older) type of login where the website does not have a login form directly on the webpage. Instead the browser opens a grayish looking box requesting username and password. ThePasspack It! button is not able to log you into these websites because of the popup, however there is workaround method that you can use.
(1) In your Entry window, click on the small Options tab to your right.
(2) Select Yes under the Site requires Basic Authentication? option.
(3) Press OK to save your changes.
You should now see a slightly different icon in your password list for this entry. From this point on, to auto-login to that website, you will need to click through to the website from inside your Passpack account by clicking on this icon.