I'm trying to get authentication working and it's being really flaky, with an emphasis on the not working.
I've tested the server settings and they test fine. I've verified the user is in the group, and they are. I've tried different groups and different users, no go. I've tried it with and without a start point. Every time I think I have it working (read: it actually works as expected), it later fails with no changes. It just seems totally random.
The server is running on a PC with the latest patch of 14 installed, and the client is the latest version of FileMaker Pro 13 running on a Mac under 10.11.2 with the machine bound to AD.
Is there anything obvious I can check that I might be missing?