Adding 2FA to vmWare vSphere

I’m trying to add 2factor Auth to our vmWare vSphere. I managed to add PIs LDAP-proxy as identity provider via CLI (see but when it comes to adding users from our domain, I just get an “A vCenter Single Sign-On service error occurred”- error in the GUI.

Has anybody of you ever managed to get this working?

Thanks for any help or input on this!!