On M1 Macs, this often happens if the kernel extension is blocked. Ensure you have authorized the developer in Security settings. For some macOS versions, you may need to change the Security Policy in Recovery Mode to allow third-party extensions. Clean Install:
If you are running an older version of the Kerio client that relies on legacy kernel extensions, clicking "Allow" might prompt you to change your M1 Mac's security policy in Recovery Mode. If prompted, follow these steps: Shut down your M1 Mac entirely.
GFI (the developer of Kerio) maintains a repository of installers. Search for the latest macOS .dmg file to ensure you have the version that includes the most recent security patches and Ventura/Sonoma support. Installation Steps for M1 Mac Users
Use your standard domain or Kerio credentials.
Native applications provide better integration with macOS system security features. kerio control vpn client mac m1 download
: After installation, configure the VPN client by specifying the VPN server address, authentication method, and potentially other settings based on the network requirements.
Once installed and restarted, configure the client to connect to your remote network.
Do you need to know which of Kerio is most stable on macOS Sonoma/Sequoia?
Recent versions of the Kerio Control VPN client support Apple Silicon. If you use an older enterprise version, macOS will prompt you to install Rosetta 2 to translate the Intel code. On M1 Macs, this often happens if the
Ensure the extension is allowed in System Settings > Privacy & Security .
Note: The default port for Kerio VPN is often , using TCP/UDP. Troubleshooting Mac M1 VPN Issues If you encounter issues, consider these common solutions:
Ensure you download the version specifically designed for macOS (64-bit) .
Download a native, Apple Silicon-optimized OpenVPN client for Mac, such as or the official OpenVPN Connect app. Import the .ovpn profile into the native client. Clean Install: If you are running an older
: If the client fails to start, ensure the VPN driver is trusted in System Settings > Privacy & Security VPN Protocol
Press and until you see "Loading startup options". Click Options , then click Continue to enter macOS Recovery. Select an admin user and enter the password.
If you are forced to use an Intel-only version of the client for compatibility with a specific server version:
The safest way to get the exact version matching your company's firewall server is through the server itself. Open your web browser.