Windows update broke Cisco AnyConnect Mobility VPN Client

This morning Windows prompted me to reboot to apply updates. After I did that, the Cisco VPN client started reporting “Failed to initialize connection subsystem.” When I looked up, I found this article – Microsoft’s SSL 3.0 Poodle-busting patch KB 3023607 breaks popular Cisco VPN client

I followed the compatibility route suggested as a workaround in that post, and it fixed the problem for me:

  1. I closed the Cisco AnyConnect Window and the taskbar icon
  2. Right-clicked vpnui.exe in the Cisco AnyConnect Secure Mobility Client folder. (I have it in C:\Program Files (x86)\Cisco\Cisco AnyConnect Secure Mobility Client\.)
  3. Clicked the Troubleshoot Compatibility option
  4. Chose Try Recommended Settings.
  5. The wizard suggested Windows 7 compatibility.
  6. Clicked Test Program. This will opened the program. I entered the credentials and connected.
  7. Closed the dialog.
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