Error message after upgrading to macOS High Sierra 10.13.4
Issue: Users that upgrade to macOS High Sierra 10.13.4 may see the following error message when using VPN.
Resolution: The warning does not prevent the VPN client from working correctly, however the newest software version available from CU Boulder addresses this message. Remove the application and reinstall to dismiss the warning message by following these steps :
Uninstall AnyConnect by opening a terminal window and entering "sudo /opt/cisco/anyconnect/bin/anyconnect_uninstall.sh"
Windows 8.1 users receive a ''Failed to initialize connection subsystem'' error
Issue: Microsoft's February updates introduced a specific OS bug that results in Windows 8.1 users receiving an error when they try to start Cisco's AnyConnect VPN.
Resolution: Cisco has opened a case with Microsoft (case ID: 115021112390273) to fix the bug that is affecting AnyConnect. Until a permanent fix is issued by Microsoft, the workaround below will allow users to use AnyConnect.
Workaround: To install Microsoft's Fix it solution, click this Fix it link. Click Run in the File Download dialog box, and then follow the steps in the Fix it Wizard. Note: To apply this fix, you have to log off and then log back into your user session.
Issue: Some users may get disconnected from their VPN session.
Workaround: Please close out of your current session and reconnect. If the problem persists you can contact the IT Service Center at 303-735-4357 (5-HELP) or email@example.com to work through the issue.