Hi,
Not sure this is relevant but I got authentication working again by uninstalling ru13, waiting a couple days, and then reinstalling it. It has been fine since.
I have the same problem on a test system that I haven't fixed yet.
I have the CRM site, as well as the SBS RWW, in compatibility mode for IE 10. RWW is required to be in compatibility mode in IE 10, and I think adfs ends up also needing it.