Issue 1: "The VPN client driver is not installed or running"

to change the security policy to "Reduced Security" to allow third-party kernel extensions if you are using an older client version, though the modern

This often occurs if the background daemon failed to start. You can try manually loading it via Terminal with:

During installation, macOS may block the network kernel extension needed by the VPN.

Kerio Control VPN Client is a software application that allows users to establish a secure and encrypted connection to a VPN server. Developed by Kerio Technologies, the VPN client is designed to provide a secure and private internet connection, protecting users' data and identity from hackers and other malicious actors. Kerio Control VPN Client is compatible with various operating systems, including Windows, macOS, and mobile devices.