If you have two or more network adapters in your computer and you are using Dial-Up Networking to connect to a network using the TCP/IP protocol, you may not be assigned an IP address and may not be able to use a static IP address. When this occurs, running Winipcfg.exe shows an IP address and subnet mask of 0.0.0.0, even though you are connected with the TCP/IP protocol.

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This problem can occur when you have two or more network adapters installed with TCP/IP bound to each, and you have TCP/IP bound to the Dial-Up Networking adapter.

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To work around this problem, follow these steps:

1.	Click Start, point to Settings, click Control Panel, and then double- click Network.
2.	Click one of the network adapters. (NOTE: Do not click the Dial-Up Networking adapter.)
3.	Click Properties.
4.	On the Bindings tab, click the TCP/IP check box to clear it, and then click OK.
5.	If you have more than two network adapters, repeat steps 2-4 until TCP/IP is bound to only one network adapter and the Dial-Up Networking adapter.
6.	Click OK until you return to Control Panel. When you are prompted to restart your computer, do so.

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This problem no longer occurs in Windows 98. To resolve this problem, install the current version of Windows. For information about the current version of Windows, visit http://www.microsoft.com/windows (http://www.microsoft.com/windows).

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For additional information about issues resolved by updates to these components, please see the following article in the Microsoft Knowledge Base:

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