A TCP/IP session that is inactive for more than one minute may be disconnected when you connect to a terminal server from a Windows Server 2003 SP1-based computer (901023)

SYMPTOMS

Consider the following scenario:

• You are using a Microsoft Windows Server 2003 Service Pack 1 (SP1)-based computer.
• You connect to a server that has Windows Server 2003 Terminal Server enabled or to any application that uses TCP/IP.
• The connection passes through a Microsoft Internet Security and Acceleration (ISA) Server 2000-based computer in the outgoing direction.
• The connection stays inactive for more than one minute.

In this scenario, the TCP/IP session may be disconnected by the ISA 2000 Server-based computer.

Note If you use a Terminal Server client computer to connect to the terminal server or to an application that uses TCP/IP, the client computer automatically reconnects most of the time. When this occurs, you may not notice any interruption in the connection. However, if a custom application uses custom authentication to create a specific connection, and if this custom application starts connection by using an ActiveX control, the connection will lose the authentication integrity after it is disconnected by the ISA Server 2000-based computer. In this case, the client computer may not be able to automatically reconnect.