OpenVPN Active Directory Authentication

Hello all,

I currently have a functioning Server 2019 Active Directory environment.

I am looking at replacing the FortiClient VPN with OpenVPN running on PFsense 21.02.

The FortiClient VPN uses the Active Directory to authenticate VPN logins.

How do I accomplish this with OpenVPN and PFsense?

I have searched the internet and found many sets of instructions, but almost all of them are old.

I have tried to follow a couple of them, but they are not working.

I get authentication errors

Any help is appreciated.

Thanks,

Shawn