@aduffield said in WebGui and RADIUS authentication:
So, to be clear, if I set the GUI to use RADIUS for auth, I will still be able to log in as the local admin account?
That's what I just said, yes.
Regarding the users, I have Windows NPS in place for Radius which uses Windows AD groups, do I need to set the usernames on the pfsense to match the users in AD?
Read the docs about how this works, especially with regard to groups on pfSense and the class attribute:
https://docs.netgate.com/pfsense/en/latest/book/usermanager/authentication-servers.html#radius
https://www.netgate.com/resources/videos/radius-and-ldap-on-pfsense-24.html