I have seen this asked a number of times, but I have not been able to piece together the solution. I can access SharePoint Central Administration from the local server, but when I try from my Windows 8 system I just get prompted over and over again. I have tried from a Windows 7 system and the same issue occurs so I think the issue might be the server.
Server: Windows Server 2012
SharePoint: SharePoint 2013 Enterprise
Authentication: Kerberos
Protocol: SSL (HTTPS://<Servername>:<PortNumber>)
Firewall: Verified port is open - Firewall log shows the connection is allowed.
Client Browser configuration is set so that the site is in the intranet zone. Protected mode is off. I really shouldn't be getting prompted at all.
No issues with the SharePoint site. Just the Central Administration website.