You use Windows Internet Explorer 9 to visit a secure (HTTPS) website by using Secure Sockets Layer (SSL), and the website requires client-side certificates. However, after the connection is created, the prompt for the client certificate may not appear. Therefore, the authentication may be unsuccessful.
Note This problem does not occur if a proxy server is used in the connection between the client and the web server.
To resolve this problem, install this update.
Security update information
To resolve this issue, install the most recent cumulative security update for Windows Internet Explorer. To do this, visit the following Microsoft website: