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Network adapter cannot automatically adjust its speed to the network speed

  • Article

The information in this article applies to:

  • Visual Studio 2005 Team Foundation Server

  • Visual Studio Team System 2008 Team Foundation Server

  • Windows Server 2003

  • Windows Server 2008 

  • Application-tier server

  • Data-tier server

  • Health check

The Best Practices Analyzer tool for Team Foundation Server queries a Windows Management Instrumentation (WMI) class (Win32_NetworkAdapterConfiguration) and determines the list of adapters for which the IPEnabled value is set to true. For each of these adapters, the tool retrieves the adapter information from the following registry key: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E972-E325-11CE-BFC1-08002bE10318}.

An error appears if the tool determines that the link speed of the network adapter is not set to automatically adjust based on the network speed. Network performance can drop dramatically if network adapters in multiple computers are configured for different link speeds. As a best practice, you should make sure that all servers are configured to automatically adjust to the network speed.

To resolve this issue, configure the network adapter to enable automatic detection of its link speed.

To configure a network adapter to automatically adjust its speed in Windows Server 2003

  1. Open Start, point to Control Panel, point to Network Connections, and then click Local Area Connection.

    The Local Area Connection Status dialog box opens.

  2. Click Properties.

    The Local Area Connection Properties dialog box opens.

  3. Click Configure.

    The properties dialog box for the network adapter opens.

  4. Click the Advanced tab.

  5. In the Property list, click the property that corresponds to the connection type, such as Duplex Mode, Media, Media Type, or Link Speed & Duplex, depending on the adapter's attributes.

  6. In the Value list, click Auto or Auto Detect.

  7. Click OK, and then click Close.

To configure a network adapter to automatically adjust its speed in Windows Server 2008

  1. On the Start menu, click Control Panel.

  2. Click Network and Internet.

  3. Click Network and Sharing Center, and then click Manage network connections.

    The Network Connections folder opens.

  4. Right-click Local Area Connection, and then click Properties.

    The Local Area Connection Properties dialog box opens.

  5. Click Configure.

    The properties dialog box for the network adapter opens.

  6. Click the Advanced tab.

  7. In the Property list, click the property that corresponds to the connection type, such as Connection Type, Duplex Mode, Media, Media Type, or Link Speed & Duplex, depending on the adapter's attributes.

  8. In the Value list, click Auto or Autosense.

  9. Click OK.

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