274-Keep-Alive Connections

Computer/User Node :

   MACHINE

Policy Path :

   Administrative Templates\Windows Components\Terminal Services

Supported on :

   At least Microsoft Windows XP Terminal Services

Help/Explain Text :

   Specifies whether persistent connections are allowed. After a terminal server client loses the connection to a terminal server, the session on the terminal server might remain active instead of changing to a disconnected state, even if the client is physically disconnected from the terminal server. If the client logs on to the same terminal server again, a new session might be established (if Terminal Services is configured to allow multiple sessions), and the original session might still be active. You can use this setting to enable keep-alive connections and ensure that the session state is consistent with the client state. By default, keep-alive connections are disabled. To configure keep-alive connections, enable the setting and set the Keep-alive interval. The keep-alive interval determines how often, in minutes, the server checks the session state. If the status is set to Enabled, keep-alive connections are enabled. If the status is set to Disabled, the default behavior is enforced. If the status is set to Not Configured, keep-alive connections remain disabled by default.

Registry Settings :

  HKLM\SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services!KeepAliveEnable, HKLM\SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services!KeepAliveInterval