When you visit a website, your browser takes a "snapshot" of it and stores the files in a temporary folder so it will load faster the next time you visit the site. Generally, this is a nice feature, however, it can cause issues when you try to log into a website.
For example, if you entered the wrong PIN to access the Self Service Center, you will see an Authorization Failure page. When you try to log in again, even with the correct credentials, you still might see the Authorization Failure page because your browser "remembers" that website.
Please follow these instructions to clear the browser cache. This may solve the problem.
Version 8: Click Tools > Internet options
Version 9/10/11: Click gear icon, Safety > Delete Browsing history
Under Browsing History click the Delete…button
Make sure Preserve Favorites website data is UNCHECKED.
Click Delete and then OK
Close all Internet Explorer windows, open a new Internet Explorer window and try again
Click the orange Firefox menu at the top
Click the Advanced tab>Network
Click Clear Now under Cached Web Content
Click Clear Now under Offline Web Content and User Data
Close all Firefox windows, open a new Firefox window and try again
Click the Chrome menu>Tools>Clear Browsing Data
Choose The beginning of time
Check Empty the cache
Click Clear Browsing Data
Close all Google Chrome windows, open a new Google Chrome window and try again