Windows 8.1 Known Issue
Windows 8.1 users may experience an issue with Cisco AnyConnect suddenly quitting and coming up with the error "Failed to initialize connection subsystem." This is due to a certain Windows security update. It is a known issue, and the fix can be found on our FAQ's page.
Windows 8 Known Issue
Occasionally the Standard VPN client will have an issue with Windows 8. We are aware of the issue and a fix has been found. The fix can be found on the FAQ's page which has the file to download and instructions on how to apply the solution for the issue and allow the VPN the function properly.