SOLUTION:
Start -> Run or Command Prompt.
mstsc /v:IP address of server or server fqdn /admin or
mstsc /v:IP address of server or server fqdn /console
and see link below
https://social.technet.microsoft.com/Forums/en-US/aef9ec02-ed6e-45c2-9bbe-35386886cadb/windows-2003-terminal-server-has-exceeded-the-maximum-number-of-allowed-connections?forum=winserverTS
