|1. Problems Entering Access Code
In Microsoft Internet Explorer,
or "Page Not Found" Error 404
If you have upgraded your web browser to
Microsoft Internet Explorer 9 or later, you may not be able to enter the
access code until adjusting one security setting.
Open Internet Explorer.
Finally, close all
windows and re-start Internet Explorer.
Click on "Tools" in the upper right and select
Click on the "Security" tab.
Next click on "Internet" zone.
Then click on "Custom Level...".
Scroll all the way to the bottom of this list
and look for "Allow websites to prompt for information using scripted windows".
(See example below)
Click on "Enable".