We are setting up FileMaker to use external authentication again ActiveDirectory. This works well for general authentication (Windows FM16 or 17 client against FM17 server), but when someone in the DBA group with [Full Access] selects File > Manage > Security they are still prompted for credentials. I eventually discovered that entering one's system username and password will work, and grant access to the security settings screen as usual. However, this does not work for the second authentication dialog when trying to save changes. Any ideas on how to commit changes in this scenario?