VPN, CISCO AnyConnect, Error message "The feature you are trying to use is on a network resource that is unavailable"

When attempting to install the VPN client on Windows, the following error message may result: "The feature you are trying to use is on a network resource that is unavailable." A dialog box is presented for specifying a different location.

This error can be the result of incorrect registry clean up from a previous version of the AnyConnect software being installed. 

Microsoft has released a Program Install and Uninstall Troubleshooter that can look for problems in the registry and correct them, allowing the next installation to succeed.  To use this tool to attempt a fix:

  1. Download the application linked above from the Microsoft support website. 
  2. Launch the application
  3. When you launch it, it will ask if you are having a problem with installation on uninstallation.  Click installation.  
  4. It will present you with a list of things you might be having problems with. Find "Cisco AnyConnect Secure Mobility Client" in the list and select it. 
  5. After a bit it should say it has fixed the problem. 
  6. Exit out of the application following it's instructions. 
  7. Run the AnyConnect installer and let it install the VPN software.