Microsoft KB Archive/929853

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You cannot access network resources and domain name resolution is not successful when you establish a VPN connection to the corporate network from a Windows Vista-based computer

Article ID: 929853

Article Last Modified on 3/17/2007


  • Windows Vista Ultimate
  • Windows Vista Enterprise
  • Windows Vista Business
  • Windows Vista Home Premium
  • Windows Vista Home Basic
  • Windows Vista Starter
  • Windows Vista Ultimate 64-bit edition
  • Windows Vista Enterprise 64-bit edition
  • Windows Vista Business 64-bit edition
  • Windows Vista Home Premium 64-bit edition
  • Windows Vista Home Basic 64-bit edition


You establish a virtual private networking (VPN) connection to the corporate network from a computer that is running Windows Vista. When you try to access network resources, you experience the following symptoms:

  • You cannot access network resources.
  • Domain name resolution is not successful.


This issue can occur if one of the following conditions is true:

  • The computer is not joined to a Microsoft Windows domain. For example, you establish a VPN connection from a home computer to the corporate network.
  • The computer is configured to use TCP/IP version 6 (TCP/IPv6). Additionally, TCP/IP version 4 (TCP/IPv4) is not installed on the computer or is not enabled on the VPN connection.
  • TCP/IPv4 is installed on the computer. But a Domain Name System (DNS) suffix cannot be obtained for the TCP/IPv4 address.

This issue occurs because Dynamic Host Configuration Protocol version 6 (DHCPv6) does not support connection-specific DNS suffixes. Therefore, DNS suffixes must be configured by using TCP/IPv4, either manually or automatically.


To work around this issue, manually configure the DNS suffix for the TCP/IPv4 address in the VPN connection. To do this, follow these steps:

  1. Click Start[GRAPHIC: Start button], right-click Network, and then click Properties.
  2. Click Manage network connections.
  3. Right-click the VPN connection that you want to configure, and then click Properties.
  4. [GRAPHIC: User Account Control permission ] If you are prompted to confirm that you want to continue, click Continue.
  5. In the This connection uses the following items box on the Networking tab, click Internet Protocol Version 4 (TCP/IPv4), and then click Properties.
  6. Click Advanced, and then click the DNS tab.
  7. Specify the DNS suffix for the connection, and then click OK three times.

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