I need to use Cisco VPN Client 5.x for business purpose.
Before the installation of Windows 8.1, the Cisco VPN Client works smoothly with windows 8 and IE 10. There is no problem at all.
However, after update of Windows 8.1, no page can be displayed in IE when VPN is connected. (There is no such impact when VPN is disconnected.)
The error message like this,
This page can’t be displayed.
Make sure the web address http://www.facebook.com is correct.
Look for the page with your search engine.
Refresh the page in a few minutes.