block VPN connection for the admin account

[relion]

Hello,

I have an OpenVPN Access Server configured on a corporate network.

I turned off port sharing on 443 for the admin web server so it's not accessible from the Internet.

However, the admin account can still be used to access the Client Web Server to obtain a VPN connection.

Is there a way to disable VPN access for the admin account? In other words, I'd like the admin account to be an admin only account with no VPN access.

Thank you!
Brian