I'm trying to update our Azure AD Connect to allow hybrid join of devices through ADFS. However, no matter what account I use, whether it is a local admin on the adfs server, or a domain admin, enterprise admin, schema admin, etc I cannot get past the Federation Services login. I have even tried the service account that ADFS runs as. We had a third party set this up for us, and they have been unresponsive.
Any hints as to where I can find what account needs to be used, and the context for that account?