You may be disconnected when you connect a Windows XP-based computer to a remote server through a VPN, and you use an external firewall device or a NAT device

When you connect your Microsoft Windows XP-based computer to a remote server through a virtual private network (VPN) connection, and you use an external firewall device or a network address translation (NAT) device, you may be disconnected after about five minutes.

Service pack information

To resolve this problem, obtain the latest service pack for Windows XP. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section. This problem was first corrected in Windows XP Service Pack 2.

For additional information about the terminology that is used in this article, click the following article number to view the article in the Microsoft Knowledge Base: