How to Fix Kerio VPN Client Error 28201: A Complete Guide If you are trying to install or upgrade the Kerio VPN client on Windows 8, 10, or 11 and keep hitting Error 28201: Failed to install VPN device driver, you are not alone. This error often occurs because of leftover registry keys, conflicts with existing virtual adapters, or Windows' strict requirements for signed drivers.
Error 0x800F020B: Follow the registry cleanup and use the Kerio VPN Recovery tool available at Kerio Control GFI Support. error 28201 kerio vpn client
Need help configuring your VPN connection settings once the client is installed? Let me know! How to Fix Kerio VPN Client Error 28201:
Disable your antivirus temporarily to prevent it from blocking driver injection. Right-click the tool and select Run as Administrator. Need help configuring your VPN connection settings once
Server-Side Check (Admin required)
You’ll need physical or remote console access to the server. In worst-case scenarios, restore from config backup or contact GFI/Kerio support.
Residual files from a previous or failed installation are the most common culprits. : Use the standard Windows Apps & Features to remove Kerio Control VPN Client. Device Manager and select Device Manager . Look under Network adapters