I currently have a lab one adfs server and one web app proxy. I can access adfs when i attempt to logon against portal.office.com. However when I swith to using Certificate Auth. the moment i select sign in using x.509 certificate the next page says "Select a certificate that you want to use for authentication. If you cancel the operation, please close your browser and try again."However I do not get a screen to select my user certificate. Both servers have the root ca from my own AD CA. any ideas?