If your experiencing issues with disconnections through Windows 2012 RDS Web Interface and you have already disabled all the idle session limits on your TS Farm by a GPO you might also wish adjust your IIS timeout limits as well. RDS Web uses HTTPS for RDP so the standard timeout are applied to your RDP…
Unable to remove deleted Session Hosts from RDS Windows 2012 Deployment Very good article: http://dave.harris.net/unable-to-remove-deleted-session-hosts-from-rds2012-deployment/
Configure an RD Session Host Server to Join a Farm in RD Connection Broker See Article – http://technet.microsoft.com/en-us/library/cc753630.aspx
Windows 2012 Remote Terminal Services Configure DNS for RD Connection Broker Load Balancing Article on how to create a round robin Article – http://technet.microsoft.com/en-us/library/cc772506.aspx
