Having a problem protecting Sophos UTM.
I set up a LDAP proxy and configured the Firewall to use that proxy instead of the old NPS.
This works well for the authentication to the VPN portal page. However, when I configure the same for the SSL VPN I authenticate, receive and approve a DUP push but get denied after.
In the DUO admin panel I can see the authentication request as completed. There must be some mishap happening between the proxy and the FW.