When none of the above work, dive into the logs. Open the latest .log file (e.g., KerioVPNClient_20250115.log ) and look for lines containing 28201 .
: Indicates residual files or registry keys from a previous installation. error 28201 kerio vpn client
: For Windows 10 (version 2004 or later), ensure you are using VPN Client version 9.2.7 build 4393 When none of the above work, dive into the logs
: Delete the following key using regedit : HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Kerio . When none of the above work
: Security software may block the installation of virtual network drivers during the setup process. Step-by-Step Solutions 1. Perform a Clean Uninstallation