we have 2012 server RDP , and role DC/terminal server roles / license 15 cal
session seem to be only four allowing and if the fifth user connect and it will spin around and throw error remote server not configure or not turn on, firewall .
the strange thing if i go to server logon as fifth users at local box then then let the user know it ready, then he can connect using RDP to it no problem
called Microsoft support they checked traffic / log file etc... but no luck
any one have same issue like this please let me know and how to fix this
thank you so much for all your input, again than you all experts