I have an SSID that uses a Splash page with AD authentication. I am setting up a new AD server (different domain name) and want to switch the authentication over to that server. I have tried by removing the IP addresses of the old AD servers and entering the IP address of the new server and updated the credentials for the new domain but when I try to connect to the SSID, authentication fails. the old AD's are 2012 and the new one is 2016 if that makes any difference. Is there anything I need to set up on the new server to allow this to happen?