Due to new security features in macOS High Sierra, 10.13, users will have to approve the Cisco System Extension before the software will be fully functional. Additional information about how kernel extensions are managed can be found on Apple's website: Prepare for changes to kernel extensions in macOS High Sierra. This is a new requirement in High Sierra. 4.4MR4 and 4.5MR1 have also been tested for High Sierra compatibility, but will provide no further guidance to the end user (beyond the single OS prompt) that manual steps are required to provide full AnyConnect capabilities.
Due to new security features in macOS High Sierra, 10.13, users will have to approve the Cisco System Extension before the software will be fully functional.
Additional information about how kernel extensions are managed can be found on Apple's website:
During the upgrade process, you will get a System Extension Blocked pop-up message. Click on Open Security Preferences:
This will open the Security & Privacy window. At the bottom, you will see the 'System software from developer 'Cisco' was blocked from loading message. Click on 'Allow.'
After you click Allow, this will permit the extension, and the software will continue to install.
Due to new security features in macOS High Sierra, 10.13, users will have to approve the Cisco System Extension before the software will be fully functional.
Additional information about how kernel extensions are managed can be found on Apple's website:
During the upgrade process, you will get a System Extension Blocked pop-up message. Click on Open Security Preferences:
Cisco Anyconnect Mac Sierra Download
This will open the Security & Privacy window. At the bottom, you will see the 'System software from developer 'Cisco' was blocked from loading message. Click on 'Allow.'
Cisco Anyconnect Mac Os Sierra
After you click Allow, this will permit the extension, and the software will continue to install.