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An outdated network router may not function correctly when you use it together with new networking features in Windows Vista

INTRODUCTION
This article describes why an outdated network router may not function correctly when you use it together with new networking features in Windows Vista. When you use an older router together with Windows Vista, you may experience any of the following problems:
  • Slow network connection speeds or Internet connection speeds
  • Gradual loss of network performance
  • Lack of support for new features or for networking technologies
More information
Windows Vista uses a new network stack and provides new networking features that may not be fully compatible with an outdated network router. For example, Windows Vista uses UPnP-certified standards much more than Microsoft Windows XP. An outdated or less robust network router may be unable to handle the increased UPnP traffic that is generated by Windows Vista. Therefore, network packets may be dropped. When this problem occurs, you may experience any of the following problems:
  • Page errors occur when you surf the Internet.
  • Network performance is reduced.
  • The network router may stop functioning, and you must reset the router.
Additionally, Windows Vista uses Internet Protocol version 6(IPv6) and IPv6 transition technologies. The network router may use Symmetric Network Address Translation (NAT). Symmetric NAT is incompatible with IPv6. The router may function incorrectly when you use applications that rely on IPv6 technologies, such as Microsoft Windows Meeting Space.

Note This is a "FAST PUBLISH" article created directly from within the Microsoft support organization. The information contained herein is provided as-is in response to emerging issues. As a result of the speed in making it available, the materials may include typographical errors and may be revised at any time without notice. See Terms of Use for other considerations.
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Article ID: 932134 - Last Review: 04/03/2013 15:19:00 - Revision: 1.0

Windows Vista Enterprise 64-bit Edition, Windows Vista Home Basic 64-bit Edition, Windows Vista Home Premium 64-bit Edition, Windows Vista Ultimate 64-bit Edition, Windows Vista Business, Windows Vista Business 64-bit Edition, Windows Vista Enterprise, Windows Vista Home Basic, Windows Vista Home Premium, Windows Vista Starter, Windows Vista Ultimate

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