Applies To: Windows 7, Windows 8, Windows Server 2008, Windows Server 2008 R2, Windows Server 2012, Windows Vista Before users can connect to your Telnet server, you must allow access by adding their user accounts to the TelnetClients group on the Telnet server. The TelnetClients group is created automatically when you install the Telnet Server service. On domain controllers, the TelnetClients gro